Graph Using X-and Y-Intercepts

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• x-intercepts

Which quadratic equation best represents a graph that has x-intercepts at -6 and -1 and goes through (0, -6)

• y = -(x - 1)(x - 6)

• y = (x - 1)(x - 6)

• y = -(x + 1)(x + 6)

• y = -6(x + 1)(x + 6)

Write the equation of the quadratic function in Intercept Form using the x-intercepts and ANY point on the graph.. Remember: Intercept form is written as y = a(x-p)(x-q)

• y =(x - 1)(x - 3)

• y = -1/2(x - 1)(x + 3)

• y = 2(x + 1)(x - 3)

• y = - 1(x - 1)(x - 3)

Write the equation of the quadratic function in Intercept Form using the x-intercepts and ANY point on the graph.. Remember: Intercept form is written as y = a(x-p)(x-q)

• y = (x - 1)(x + 3)

• y = (x + 1)(x - 3)

• y = 2(x + 1)(x - 3)

• y = 2(x - 1)(x + 3)

The graph below describes a ball that was kicked. Which equation best models the graph? Use the x-intercepts and ANY point on the graph.

• y = -250(x)(x - 4)

• y = -500(x)(x - 4)

• y = -500(x)(x + 4)

• y = -250(x)(x + 4)

Use the graph to determine the X-intercepts

• (-1,0) and (-3,0)

• (1,0) and (3,0)

• (0,1) and (0,3)

• (0,-1) and (0,-3)

What are the x-intercepts for g(x) = -3(x + 8)(x + 2)

• 8 and 2

• 8 and -2

• -8 and - 2

• -8 and 2

Write the equation of the quadratic function that has a x-intercepts (p and q) at 2 and 4 and passes through the point (3, 4).

• y = -4(x - 2)(x - 4)

• y = -4(x + 2)(x + 4)

• y = 4(x - 2)(x - 4)

• y = -0.25(x - 2)(x - 4)

The point in which a graph hits the x-axis is know as the _____

• Solution

• x-intercept

• Root

• All answers are correct

Use the graph to determine the solutions.
*Hint: Solutions = roots = zeros = x-intercepts

• -1 and -3

• 1 and -3

• 1 and 3

• -1 and 3