Find Stretch to Match a Point

This quadratic is y = a(x + 4)(x - 2). How can you obtain the (x + 4) and (x - 2) from the graph?

Use the y intercept Use the axis of symmetry to find the factors. Use the vertex to write the factored form. Use the x intercepts x = -4 and x = 2 to write the factors.

Vary the vertical stretch factor "a".[br][br]True or False....All values of "a" pass through the same x intercepts.

True False

What value of "a" will make the graph pass through the point (-3,4)

1 -1/2 2 -1 1.5

True False:[br][br]Only one value of "a" will pass through the x intercepts AND the point (-3,4)

False True

What is the axis of symmetry?

x = 0 x = -2 y = -2 x = -1

Fermer

Information: Find Stretch to Match a Point