Question

write an equation for each quadratic function whose graph is shown​

Answer 1

Answer:

9. y=5$x^{2}$

10. y=2/3$x^{2}$

11. y=1/10$x^{2}$

12. y=-1/4$x^{2}$

Step-by-step explanation:

9. Use vertex form (y=a(x-h)^2+k) and insert the vertex (0,0) as (h, k).

y=a(x-0)^2 +0

Substitute the x and y values for the given point on the graph, (-1, 5)

5=a(-1-0)^2+0

Solve for a.

5=a(-1)^2

5=a

Substitute a in vertex form and solve for general form (ax^2 +bx+c)

y=5$x^{2}$

Use this method to find the rest of the equations.