Direct Variation 8.5e

• $\frac{7}{6}miles\ per\ hour$

• $\frac{3}{4}miles\ per\ hour$

• $\frac{2}{8}miles\ per\ hour$

• $\frac{10}{5}miles\ per\ hour$

The value of y varies directly with x. When y=75, x=1/2. What is the value of y when x is 2.25

• 84

• 337.5

• 16.66

• 168.75

It takes Kendrick 20 minutes to travel 5 miles to school on his bike. Which correctly shows the relationship between the distance Kendrick travels and time?

• 15 miles per minute

• 4 miles per minute

• 0.25 mile per minute

• 1.25 miles per minute

The cost of a pizza varies directly with the length of the diameter. If a pizza with a 12-inch diameter cost $8.64, how much should a pizza with a 16-inch diameter cost?

• 103.68

• 138.24

• 11.52

• 6.48

What is k, the constant of variation?

• 15

• 40

• 54

• 35

The number of inches a bungee cord stretches varies directly with the number of pounds it holds. One cord stretches 12 inches when a 30-pound object is attached to it. Which table best represents this relationship?

• 
• 
• 
• 

The number of donuts produced by a machine is directly proportional to the time the machine runs. The machine produces 380 donuts in 20 minutes. How many donuts can the machine produce after running for 45 minutes?

• 675 donuts

• 855 donuts

• 920 donuts

• not here

k=

• $\frac{x}{y}$

• $\frac{y}{x}$

• y intercept

• origin

When we compare quantities, we compare them as _____ over _____.

• x over y

• rate over one

• y over x

• y intercept

Write an equation for this scenario. Bella watches tiktok videos 4.5 hours per day

• y=4.5x

• y=45

• y=45x

• y=x45-2