10 points A cell phone data plan has a monthly charge of $30 and charges $15 for each
additional 10 gigabytes of data. The function below can be used to determine
the cost of the cell phone plan for any month. What are the rate of change and
initial value?
y = 15x + 30

A. The initial plan cost is the y-intercept of 30 and the rate of change is $15
for each additional 10 gigabytes.

B. The initial plan cost is the y-intercept of 10 and the rate of change is $15
for each additional 10 gigabytes.

C. The initial plan cost is the y-intercept of 10 and the rate of change is $30
for each additional 10 gigabytes.

D. The initial plan cost is the y-intercept of 15 and the rate of change is $30
for each additional 10 gigabytes

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

the answer is 0.000652422

but if you ment to ask what is 6131 divided by 4, it is 1532.75.

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)

answer: i think it is c