Algebra 1 Review

Translate this phrase into an algebraic expression.
Eight less than the product of four and a number.
Use the variable m to represent the unknown number.

• 8 - 4m
• 8m - 4
• 8m + 4
• 4m - 8

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

The phrase "seven times the difference of a number and three" translated into an algebraic expression is:

• 7n-3

• 7(3-n)

• 7(n-3)

• 3-7n

Evaluate the expression for the given values. x = 3 ; y = -2 ; z =-3

• 1

• -17/16

• -13/20

• -13/16

Identify the property used from step 1 to step 2

3(x -10) = 20

Step 1 3x - 30 = 20

Step 2 3x = 10

Step 3 3x/3 = 10/3

Step 4 x =10/3

• Division property of equality

• Additive Inverse

• Distributive property

• Multiplicative inverse

3(1 − 3x) = 2(−4x + 7)

• x=11

• x=-20

• x=9

• x=-11

How many solutions does the equation have?

• No solutions, because -3/4 does not equal -3

• 1 solution, y=-2.25

• 2 solutions, -3 and -3/4

• Infinitely many solutions because y=y

Given -y = 5x - 10, determine the y-intercept.

• 2

• 10

• -10

• -2

Given the following equations V=1/2bh, solve for b.

• 2V=bh

• 2V/h = b

• 2V/b=h

• .5Vh=b

3x+5+2x>35

• x>6
• x<6
• x>30
• x<30

Tags

CCSS.7.EE.B.4B

Which of the below is a solution to the inequality?
4x-8y<16

• (0,-1)
• (8,0)
• (3,-6)
• (0,-12)