The equation 9(u – 2) + 1.5u = 8.25 models the total miles michael traveled one afternoon while sledding, where u equals the number of hours walking up a hill and (u – 2) equals the number of hours sledding down the hill. which is the value of u?

a. u = 0.25
b. u = 0.75
c. u = 1.1
d. u = 2.5

The equation models the total miles Michael traveled one afternoon while sledding. u equals to number of hours walking up a hill and (u – 2) equals to number of hours sledding down the hill.

Solve this equation:

correct choice is D

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

the answer is 48m^2!

step-by-step explanation: