Direct variation

Front

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

Back

26

Front

Is this a direct variation?
y=2x

Back

yes

Front

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

Back

y = \frac{39}{3} \cdot 2 = 26

Front

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

Back

26

Front

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

Back

26

Front

y varies directly with x. When y = 39, x = 3. Find the value of y when x = 2.

Back

26

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

If y =4 when x = -4, find y when x =7.

Back

y = -x; -7

Front

If y = 15 when x = 12, find y when x = 32.

Back

y = 40