Algebra 1 Review

When you graph an inequality, you use a closed dot when you use which symbols?

• ≤, ≥ 
• <, >
• ≤, <
• ≥, >

Simplify the expression.
5y - 3r + 7r - 5

• 5y + 4r + (-5)
• 5y + 10r + (-5)
• 15ry + (-5)
• 9ry + (-5)

Make this negative exponent positive.
9^-3

• 9³
• 1/9^-3
• 1/9³
• 729

Answer.

• A
• B
• C
• D

What is the solution to the system?

• (0, 3)
• (1, -1)
• (-3, 1)
• (1, 3)

Tags

CCSS.8.EE.C.8A

Simplify 5a - 6b + 4a + 3b

• 9a - 3b

• a + b

• 6ab

• -b + a

Factor
k²+7x+10

• (k+2)(k+5)
• (k-2)(k-5)
• (k+10)(k+4)
• (k+2)(k-5)

Factor the expression using the GCF: 18x + 32xy + 64xyz

• 2 (9x + 16xy + 32xyz)
• 3 (6 + 11y + 22yz)
• 2x (9x + 16xy + 32xyz)
• 2x (9+16y+32yz)

Tags

CCSS.7.EE.A.1

Solve the system of equations

4x+8y=20

-4x+2y=-30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)

Calculate the slope.

• m=-4/3
• m=4/3
• m=-3/4
• m=3/4