Spring Exam Review: Lines (2 of 4)

Trina's paycheck earnings varies directly as the number of hours she works. If she works 19 hours and earns $187.15, what should she earn if she worked 40 hours? 

• $394
• $443.25
• $472.80
• $512.20

The amount of money earned on a job is directly proportional to the number of hours worked.  If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?

• $2
• $308
• $1.57
• $265

Which of the following is the equation format for direct variation?

• y = mx + b

• y = kx

Is the relationship in the table a direct variation?

• Yes

• No

What is the equation for the given relationship in the table?

Does the graph show a direct variation?

• Yes

• No

Does the given graph show a direct variation?

• Yes

• No

In a direct variation, y=39 when x=3.  Find the value of y when x=2.

• 26
• 3
• 58.5
• 2

Find the slope

• 1

• $\frac{4}{5}$

• $\frac{4}{3}$
  

• $\frac{5}{4}$
  

What are the two points you would use to find the slope in this problem?

• (100,102500) & (2000,150000)

• (100,-102500) & (2000,-150000)

• (102500,100) & (2000,150000)

• (100,200) & (102500, 150000)