Question

he growth oral musk service is shown inwomanomous 2 to wwwDefine your variablesEarnings millions of 5)

Answer 1

Define the variables

x ------> time (quarter of a year)

y -----> earnings (in millions of $)

step 1

To find out the equation of the line we need two points

so

from the graph

we take the points

(0,2.5) and (5,25)

Find the slope

m=(25-2.5)/(5-0)

m=22.5/5

m=4.5

step 2

Find the equation of the line in slope intercept form

y=mx+b

we have

m=4.5

b=2.5

substitute

y=4.5x+2.5