Algebra 1 Semester Exam Review

Translate: "Twice the quantity of "a" decreased by 6".

• 2-(a-6)

• 2(a-6)

• (6-a)2

• 2(a)-6

What is the value of this expression when a= 125 and b= -5.

Which equation correctly solves 2x - 3y = -12 for y?

• $y=-2x-12$

• $y=\frac{2}{3}x-12$

• $y=\frac{2}{3}x+4$

• $y=-2x+4$

Solve the formula for C:

 $F=\frac{9}{5}C+32$  

•  $C=\frac{5F-160}{9}$  

•  $C=\frac{9F-160}{5}$  

•  $C=\frac{9F-32}{5}$  

•  $C=\frac{5F-32}{9}$  

What is the solution to the system of linear equations?

 $y=2x+3$   $y=3x+1$  

• (-2,-1)

• (-1,-2)

• (2,7)

• (-2,-5)

 $4x-3\left(x+2\right)=-13$  

What is the solution to the above equation?

• -11

• -7

• 3

• 1

 $3\left(2x-5\right)=5\left(x-9\right)$  

What is the value of x in the above equation?

• 30

• 10

• -4

• -30

What property justifies step (1)?

• Identity Property of Addition

• Identity Property of Multiplication

• Addition Property of Equality

• Multiplication Property of Equality

 $y=-x+2$   $7x+4y=-1$  

What is the value of y in the solution of the above system of equations?

The length, l, of a rectangle is 2 times its width. The perimeter of the rectangle is greater than 54 cm. Which inequality expresses all the possible lengths, in cm, of the rectangle?

• l > 6

• l > 12

• l > 18

• l > 36