Direct Variation Sol

Is the given table a direct variation? If so, what is the constant of variation?

• Yes. k = 1/3

• Yes. k = 3

• Yes. k = 5

• No

Which of the given graphs is a direct variation?

• A

• B

• C

• D

Which of the following represents direct variation?

• y = kx

• y = k/x

• y = x/k

• y = mx + b

y varies directly as x. If y = 15 when x = 12 find y when x = 32.

• 40

• -40

• 5

• -5

If y varies directly with x and y=63 when x=7, what is the value y when x=4?

Mathematical Equivalence

ON

Mathematical Equivalence

ON

The total distance in centimeters a toy robot moves varies directly with the time in seconds. The toy robot moves a total distance of 264 cm in 11 seconds.

What is the time in seconds that a robot moves when the total distance is 408 cm?

​ ​ ​ (a)   centimeters

• 17

• 24

• 13

• 37

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AI.9.2.D

The value of y is directly proportional to the value of x. When x = 3, the value of y is 12. What is the value of x when y = 24? Enter your answer in the box.

Mathematical Equivalence

ON

The value of y is directly proportional to x. If y=30 when x=12, then what is the value of x when y=75?

(Just type the number)

Mathematical Equivalence

ON

Mathematical Equivalence

ON