The value of y varies directly as the square of x and y=36 when x=3. What is y when x=4?

y = 64

Step-by-step explanation:

y <> x² 1

y = kx² 2

36 = 3²k

36 = 9k

K = 36/9

= 4.

To find y when x = 4, we substitute for x in equation 2

y = kx²

y = 4²k

y = 16 x 4

y = 64

answer:      

step-by-step explanation:

function 2 has a greater rate of change than function 1

function 2 has a greater y-intercept than function 1

step-by-step explanation: