A cube's surface area increases at the rate of 72 in2 sec . At what rate is the cube's volume changing when the edge length is 3 in

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

a reflection across the x axis and a 90 degree rotation left and right.

sorry not knowing about that