Yx2+2x 8

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Yx2+2x 8. Y=(X+1)^2 - 7 Rewrite the equation in vertex form. Consider the form. Let's use the quadratic formula to solve for x:.

Y = a(x^2) + b(x) + c. Find the vertex of y=-x^2-2x-8 using a graphing calculator - Duration:. What is the vertex form for the equation y=x^2-2x-8 Answer by ewatrrr() (Show Source):.

Vertex = (-2b/a, y(-2b/a) here a = 1 , b = 2-b/2a = -2/2 = -1. Equivalent to the equation y = x2 –2x – 8. Tap for more steps.

Also if you set y=0 we get the same answer:. Start with the given function. So the zeros of the function are x = -4 and x = 2.

Our parabola opens up and accordingly has a lowest point (AKA absolute minimum). (0) (0) Submit Your Solution. Y = (x^2) + 2x + (2/2)^2 - 8 - (2/2)^2.

Victoria Collins-Becker 1,329 views. We know this even before plotting "y" because the coefficient of the first term, 1 , is positive (greater than zero). So write down the equations with the y = y x2 + 3x + 5 = x2 - 2x - 5 Subtract x2 from each side 2x + 5 = -2x - 5 Add 2x to each side 4x + 5 = -5 Subtract 5 from each side 5x = -10 Divide each side by 5 x = -2 Pug that value into the original equations, and see what you get for the y.

Tap for more steps. Read Solution (0) :. And just to get a sense of what this might look like, if you plot all the x's and y's that satisfy this relationship, you get this nice little clover pattern.

Y=(X+1)^2 - 7 D. In order to graph , we need to plot some points. 3.1 Find the Vertex of y = x 2-2x-8 Parabolas have a highest or a lowest point called the Vertex.

To find the x-intercepts, set the equation equal to zero Solved by pluggable solver:. Rewrite the equation in vertex form. Factor using the AC method.

Tap for more steps. Y = a(x - h)^2 + k. Y = x^2 + 2x - 8.

Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. X < –4, –4 < x < 2, and x > 2.Since this is a "less than" inequality, I need the intervals where the parabola is below the x-axis. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.

You can put this solution on YOUR website!. We know that the equation passes through this point. • Wrote an expression for the number machine and then carried out the algebraic manipulations to show that the result was equal to the equation?.

How do I Change y=x^2-2x-8 into factored form and then use the zero product property to find the x intercepts?. Find x- intercepts and y -x^2 +2x +8 - Answered by a verified Math Tutor or Teacher. Rewrite the equation as.

In this video I will find the roots and the y-intercept of y=x^2-2x-3. Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -10 and -2 x 2 - 10x - 2x - Step-4 :. #color(red)("The y-intercept "=c=+2 ->" point" (x,y)->(0,2.

Y=-(X+1)^2 + 7 B. According to the graph it is +4 for the x intercept. Let’s find the y-intercepts of the two parabolas shown in the figure below.

Y=(X-1)^2 - 7 4.) Y = -X^2 + 2X - 8 A. How many of your students:. First, I'll find the zeroes:.

Tap for more steps. By calculation, the midpoint of 2 and -4 can be found by finding the distance:. If there is more than one x-intercept, separate them with commas.

The results are compared with the results obtained by using a graphing. Asked Mar 5, 14 in ALGEBRA 2 by angel12 Scholar. These x-intercepts split the number line into three intervals:.

Start at your b value:. Find the x-intercept(s) and the coordinates of the vertex for the parabola y = x^2-2x-8. Find the properties of the given parabola.

Y=(X+1)^2 + 7 B. Add up the first 2 terms, pulling out like factors :. How do I Change y=x^2-2x-8 into factored form and then use the zero product property to find the x intercepts?.

That is, y = x 2 + 2x - 8 -----> y = (x - 2)(x + 4). Free factor calculator - Factor quadratic equations step-by-step. Tap for more steps.

Y(-1) = 1 - 2 - 8 = -9. Free functions vertex calculator - find function's vertex step-by-step. Line and bar charts, pie charts, scatter graphs, XY graph and pie charts.

Find the X and Y Intercepts y=x^2-2x-8. The solution is where the two y's are the same. Choose from different chart types, like:.

Tap for more steps. The axis of symmetry and the vertex of this quadratic function are calculated by hand. • How many tried to use substitution of values to show that both would give the.

Y=x^2+2x-8 (graph 300x0 pixels, x from -6 to 5, y from -10 to 10, y = 2x -8). Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. When we graphed linear equations, we often used the x– and y-intercepts to help us graph the lines.Finding the coordinates of the intercepts will help us to graph parabolas, too.

Use the form , to find the values of , , and. You can put this solution on YOUR website!. To find the x-intercept (s), substitute in for and solve for.

4 - (-2) = 6. Free system of equations calculator - solve system of equations step-by-step. Name the vertex and y-intercept.

Y = x^2 - 2x - 8 = (x + 2)(x - 4) So you solve for the graph, with the graph cutting the x-axis at the points -2 and 4. Consider the vertex form of a parabola. The vertex form of a parabola, where(h,k) is the vertex.

Please Login to Read Solution. D) Vertex is at (x,min(y)) Vertex is at (1,-9) 0 0. Y=x^2-2x-8 Answer by jim_thompson5910(352) (Show Source):.

We use cookies to give you the best possible experience on our website. 8.) Y=X^2 -12X +34. The x-intercepts of the graph are -4 and 2.

Let f'(x) = 0 and find critical numbers;. Find the domain in interval notation for f(x)=4square root x (the fourth root of X) Next Question:. What is the vertex form of the following equations?.

Start extending the line from b using slope, or rise over run. Solve x 2 + 2x – 8 < 0.;. Use the method of cylindrical shells to find the volume generated by rotating the region bounded by the given curves about the -axis.

2 y plus 1/3x is equal to 12. Basically plug in values from x=-4 to x=+4 and make a factor at each and every y answer. The expression x 2 + 2x - 8 can be expressed as a product of two factors.

Create online graphs and charts. Then find the second derivative f''(x). Sketch the region and a.

Hi what is the vertex form for the equation y=x^2-2x-8 Note:. Y=-(X-1)^2 - 7 A. Y = x^2 – 2x – 8 Answer by jim_thompson5910() (Show Source):.

3.)y = x^2 -2x + 8 A. Y= (X+1)^2 + 7 C. We're told to find the x- and y-intercepts for the graph of this equation:.

Differentiate the given function. Graph of y=x^2-2x-8 is a parabola in U form. This solver can be used to solve polynomial equations.

And just as a bit of a refresher, the x-intercept is the point on the graph that intersects the x-axis. This feature is not available right now. #y=-x^2-3x+2# Compare to #y=ax^2+bx+c#.

Remember, at the y-intercept the value of \(x\) is zero. Y = x^2 - 2x - 8 Asked In exam (5 years ago) Unsolved Is this Puzzle helpful?. Extend the line by taking your slope and using its values to get points on the equation.

Math Calculators, Lessons and Formulas. Free functions inverse calculator - find functions inverse step-by-step. X 2 + 2x – 8 = 0 (x + 4)(x – 2) = 0x = –4 or x = 2.

So, to find the y-intercept, we substitute \(x=0\) into the equation. So vertex = (-1, -9) to get x intercepts put y = 0. Y = (x^2) + 2x - 8.

As the #x^2# term in negative the general shape is #nn#. Please try again later. Solving Quadratic Equations by Factoring - 1 - Duration:.

The factors of -8 have a sum of 2 are -2 and 4. You can put this solution on YOUR website!. Once again, I have some crazy relationship between x and y.

-3x + 8y = 48. Complete the square for. Next video can be.

For example, using the illustration above, you can see that for every 1 point the line rises up, it travels 4 to the right. Apply those critical numbers in the second derivative. The value of the function at a maximum point is called the maximum value of the function and the value of the function at a minimum point is called the minimum value of the function.

(x^2+y^2=8) (xy=4) Stuck on this please help. Starting with the general quadratic. Draw a gentle line in.

You can put this solution on YOUR website!. Y=(X-1)^2 + 7 C. Now the vertex of the graph is the midpoint of the graph, which runs through the midpoint of the two points 2 and -4.

Answer by lwsshak3() (Show Source):. The question stated graphing, so draw some axes and plot some factors on it employing the equation y=x^2-2x-8. To do that, we need to plug in some x values to get some y values So let's find the first point:.