Rational Equations and Variation Review

Solve.

• x = 2

• No Solution

• x = -10

• x = 10

Tags

CCSS.HSA.REI.A.2

Identify the LCD.

• x²(x - 2)
• x(x - 2)
• x
• (x - 2)

Tags

CCSS.HSA.REI.A.2

Solve by using the LCD.

• x = -2, 8
• x = 0, 4
• x = 2, -8
• x = 8

Tags

CCSS.HSA.REI.A.2

Solve for x

• x = -3
• x = -3, 5
• x = 3, 5
• x = 5

Tags

CCSS.HSA.REI.A.2

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

Tags

CCSS.6.RP.A.3C

If y varies inversely as x and x=5 when y=20, then what is the constant of variation, k? 

• 121
• 4
• 100
• 6

The cost per person to rent a mountain cabin is inversely proportional (varies inversely) to the number of people who share the rent. If the cost is $36 per person when 5 people share, what is the cost per person when 8 people share?

• $22.50
• $57.60
• $1.11
• $12.50

The time to prepare a field for planting is inversely proportional to number of people who are working.
 A large field can be prepared by five workers in 24 days. In order to finish the field sooner, the farmer plans to hire additional workers.
How many workers are needed to finish the field in 15 days?

• 6  workers
• 10  workers
• 8  workers
• 4  workers

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

• 26
• 3
• 58.5
• 2

What does the Direct Variation Equation look like?

• y= kx
• y = mx + b
• y = b
• y = x