Intro to Expressions and Equations

An Equation includes Expressions

• True

• False

These are terms whose variables and exponents are the same.

• coefficient

• like terms

• distributed terms

• inverse terms

A _______________ is an integer with a variable and is multiplied with the variable.

• coefficient

• constant

• corrective

• coordinate

3x-4=8
Is this an expression or an equation?

• expression

• equation

• I'm not sure

The equation for the table below is y=2x+5, fill in the missing values.

c

d

e

f

9

0

3

-1

7

4

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

​ (a)  

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

Rectangle R, made up of four smaller rectangles, is shown in the diagram. Match each description to the algebraic expression that represents the information. Length of long side Rectangle R ​ (a)   Total area of Rectangle A and Rectangle B ​ (b)   The area of Rectangle R ​ (c)  

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

Rectangle R, made up of four smaller rectangles, is shown in the diagram. Match each description to the algebraic expression that represents the information. Length of long side Rectangle R ​ (a)   Total area of Rectangle A and Rectangle B ​ (b)   The area of Rectangle R ​ (c)  

2(4 + 9w) 

• 8+9w

• 2+9

• 8+18w

• 2+9w