Question

If y varies directly as x, and y = -85 when x = 5, what is the value of y when x = 19

Answer 1

8.56 is the answer ...........

Answer 2

-323

Explanation:

y varies x

make k the unknown

y=kx

-85= 5k

:• k = -17

when x= 19

we can say...

y= -17(19)

y = -323 ✓