Chapter 9 Review

What are the x intercepts of the function
f(x) = 4x² + 12x + 8

• (0,8)
• (-2,0)(-1,0)
• (2,0)(1,0)
• (4,0)(12,0)

What was the previous question written in factored form?
4x²+12x + 8

• 4(x+2)(x+1)
• 4(x-2)(x-1)
• (x+2)(x+1)
• I have no idea what factored form is.

Determine another point on a parabola that has an axis of symmetry of x=4 if one point on the parabola is (0, 2).

• (2,2)
• (8,2)
• (4,2)
• I don't know how to do this

What is the axis of symmetry if the x-intercepts of the parabola are (4, 0) and (12, 0).        

• x = 8
• x = 4
• (8,0)
• I don't know how to do this

Which of the following equations have a y intercept of (0,8)?

• y = (x-8)(x+8)
• y = 2(x-3)²+4
• y = -1/18x² + 8
• I don't know

Which quadratic equation consists of the vertex? What is the vertex represented by in said equation?

• Vertex form, it is represented by the (x-h) portion
• Vertex form, it is represented by the h and k values
• Intercept form, it is represented by the (x-r1) portion
• Standard form, it is represented by the a and b values

True or false:
The solution, root, x-intercept, and zero of a problem are all the same thing

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

Identify the 'b' value: y = 16x² -8x -24

• 16
• -8
• 8
• -24

What are the x- intercepts?
f(x) = 2x(x-4)

• x= 0 and x= -4
• x= 0 and x= 4
• x= 2 and x = 4
• x= 2 and x = -4

Find the axis of symmetry for
f(x) = x²- 8x + 15.

• x = -4
• x = 4
• y = 4
• y = -4