Direct Variation

Front

What is the Direct Variation Equation?

Back

Y = mx

Front

Which equation represents a direct variation?

Back

y = -2x

Front

In a direct variation, if y=39 when x=3, what is y when x=2?

Back

26

Front

If y = 4 when x = -4, what is y when x = 7 and write the direct variation equation?

Back

y = -x; -7

Front

What is the constant of variation if a dishwasher uses 65 gallons of water to wash 5 loads of dishes?

Back

m = 13

Front

Define direct variation.

Back

A relationship between two variables where one is a constant multiple of the other.

Front

What is the constant of variation in the equation y = mx?

Back

m is the constant of variation.

Front

If y varies directly with x, what happens to y if x is doubled?

Back

y is also doubled.

Front

What is the graphical representation of direct variation?

Back

A straight line that passes through the origin.

Front

If y = 10 when x = 2, what is the value of y when x = 5?

Back

y = 25