Direct Variation

Front

Is this a direct variation equation? y=2x

Back

Yes

Front

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

Back

26

Front

What does the Direct Variation Equation look like?

Back

y = kx

Front

What is the constant of variation (k) if y varies directly with x and y=16 when x=1?

Back

16

Front

The value of y varies directly with x. Which equation represents the relationship between x and y if y = 14 when x = 6?

Back

y=7/3x

Front

What is the definition of direct variation?

Back

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

Front

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

Back

y is also doubled.

Front

What is the formula to find the constant of variation (k)?

Back

k = y/x

Front

If y = 10 when x = 5, what is the constant of variation (k)?

Back

2

Front

Write the direct variation equation for y when k = 4.

Back

y = 4x