Algebra 1 Review

Meg's teacher asked her to find the zero(s) of the equation below.  Meg decided to factor to find the zero(s). 
0= x²-4x +4

(x + ___) (x + ___)

• (x + -2)(x + 2)
• (x + -4)(x + 2)
• (x + -4)(x + 4)
• (x + -2)(x + -2)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

April wants to prove that she can solve the system of equations below using the substitution method.
3x + y = 8
y = 4x - 6

Which equation shows the first step in solving the system of equations using the substitution method?

• 7x + 2y = 2
• -x +2y = 2
• 3x + (4x-6) = 8
• 3(4x-6) +y = 8

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Simplify

• 9
• 5√2 + 2
• 10√2
• 2√2 + 3√30

Tags

CCSS.HSN.RN.A.2

Which of the following solutions fits the graph shown?

• -7 > x > -0.5
• -7 < x < -0.5
• -7 < x > -0.5
• -7 > x < -0.5

Factor completely:
x² - 121

• (x + 11)(x - 11)
• (x + 11)(x +11)
• (x - 11)(x - 11)
• x(x - 121)

Tags

CCSS.HSA.APR.C.4

Factor completely:
x³ - 4x² - 21x

• x(x - 3)(x + 7)
• x(x² - 4x - 21)
• x(x + 3)(x - 7)
• (x + 3)(x - 7)

Which of the following solutions fits the graph shown?

• x < -2
• x > -2
• x ≤ -2
• x ≥ -2

Tags

CCSS.6.EE.B.8

Write the number in standard notation
9x10⁴

• 9,000
• 90⁴
• 90,000
• 360

Multiply the binomials.
(x + 5)(x + 3)

• x² + 8x + 15
• x² + 15x + 8
• 2x² + 8x + 8
• 2x² + 15x + 8

Tags

CCSS.HSA.APR.A.1

Give the solution to the system

• (3,1)
• (1,3)
• (-1,3)
• a hoppy hippo

Tags

CCSS.8.EE.C.8B