Linear equations (two variables)

Jose travelled at a rate of 0.25 miles per minute. Which equation represents this relationship?

(Remember you can convert a fraction into a decimal, if needed)

• y = ^x/₄

• y = x + 0.25

• y = ​¹⁄₄x

• y = 0.25

The _____________ variable is the outcome, or result.

What is the independent variable for this graph?

• The Relationship between Time Spent Studying and Test Grades

• The effect of Time Spent Studying and Test Grades

• Time Spent Studying

• Test Grades

A train travels at a constant speed and can travel 95 miles (m) in one hour (h). Which equation represents this scenario?

• h = 95 + m

• m = 95h

• h = 95m

• 95 = m + h

3x+y=t(t)

• t=y

• t=3x

• t=t

• t=3x+y

Zander buys a gym membership for a registration fee of $3 and an additional fee of $10 per month. Which equation shows the relationship between y, the total cost, of x months bought?

• y = 10x + 3

• y = 3x + 10

• y = 13x

• y = 10x

Tags

7.7a

linear relationships

slope

y-intercept

Carey and Justin are raising money to purchase books for their school's library. The more money they raise, the more books they will be able to purchase for the library.

m = the amount of money Carey and Justin raise

b = the number of books Carey and Justin will be able to purchase

Which of the variables is dependent?

• m

• b

Jasen has a coupon for $10 OFF a video game. Which equation represents the relationship between the original price,  $p$ , and the new price,  $N$ , of the video game?

•  $N=10p$  

•  $N=p+10$  

•  $p=N-10$  

•  $N=p-10$  

Solve the equation for y:

 $10=10y-5x$  

•  $y=1+\frac{1}{2}x$  

•  $y=1-2x$  

•  $y=1+2x$  

Bob has $150 in his savings account and saves $40 per month. Which equation represents the amount Bob has in his account after x months?

• y = 150 + 40

• y = 40x + 150

• y = 150x + 40