Algebra 1 Exam Review (1)

What is the difference between an expression and an equation?

• Expressions have an equal sign and equations do not.

• Equations have an equal sign and expressions do not.

Which of the following is an algebraic EXPRESSION?

• 3 + 17 − k

• 3x − 45 = b

• 25x = 80

• 9m + 4 > 13

Which of the following is an algebraic EQUATION?

• 3 + 17 − k

• 3x − 45 = b

• 25x + 80

• 9m + 4 > 13

Which of the following is an algebraic INEQUALITY?

• 3 + 17 − k

• 3x − 45 = b

• 25x + 80

• 9m + 4 > 13

A TV company charges a one-time installation fee and a monthly service charge. The total cost is modeled by the function  $y=40+90x$  .

Which statement represents the meaning of EACH part of the function?

• y is the total cost, $90 is the inital fee, and $40 is the rate PER month

• y is the total cost, $40 is the inital fee, and $90 is the rate PER month

• x is the total cost, $90 is the inital fee, and $40 is the rate PER month

• x is the total cost, $40 is the inital fee, and $90 is the rate PER month

Scott works on cars. He charges $35 for each car plus $7 per hour. The expression,  $7x+35$ , represents the total charge if Scott works on a car.

If Scott works on a car for 8 hours, what would be the total?

• 287

• $91

• $50

• $42

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• $7x+35=63$

• $7x=63$

• $7x-35=63$

• $35x+7=63$

Aliyah had $24 to spend on seven pencils. After buying them she had $10. Write an equation to represent the scenario.

• 
  

  $24-10=7x$

• $24+7x=10$

• $10+7x=24$

• $10+x=14$

 $\frac{x}{-2}+3=-3$  

•  $x=0$  

•  $x=12$  

•  $x=-3$  

•  $x=-6$  

Tags

CCSS.7.EE.B.4A

 $\frac{x+8}{-11}=6$  

•  $x=74$  

•  $x=22$  

•  $x=\frac{74}{11}$  

•  $x=-74$