Quadratics Chapter Test

• -4, 2

• -2, 4

• -16

• -4

Tags

CCSS.HSA-REI.B.4B

What is a method of checking your work when factoring?

• FOIL

• asking the teacher every time

• assume you're correct

• division

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form

• Write down: a=1, b=6, c=-13

• Make it equal 0 by subtracting 3 on each side

• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

What is the discriminant?

• b²-4ac

• b²/2a

• 4ac

• b²±4ac

Tags

CCSS.HSA-REI.B.4B

What form should your equation be in before identifying a, b and c?

Which equation matches the graph?

What is the y-intercept of this parabola?

• (−1, 3)

• (−3, 11)

• (−2, 5)

• (0, 5)

Tags

CCSS.HSF-IF.C.7A

Find the x-intercepts: x²+4x-32=0

• x= -8, 4

• x= 8, -4

• x= -8, -4

Tags

CCSS.HSA-REI.B.4B

How many solutions can a quadratic have? (There maybe more than one answer)

• 1 solution

• 3 solutions

• 0 solutions

• 2 solutions

Use the discriminant to find the number of solutions for the following equation.

y = -3x² +5x - 8

• 2 solutions

• 1 solution

• 0 solutions

Tags

CCSS.HSA-REI.B.4B