Sue wants to buy an air conditioner for her bedroom. She has been told that the air conditioner needs to have 20 BTUs (British thermal units) per square foot to cool her bedroom. Her bedroom measures 15 feet by 12 feet.
Enter the number of BTUs needed to cool her bedroom.

Work Shown:

Area of rectangle = length*width

A = L*W

A = 15*12

A = 180

Sue's bedroom has floorspace of 180 square feet.

1 square foot = 20 BTUs required

180*(1 sq ft) = 180*(20 BTUs) ... multiply both sides by 180

180 square feet = 3600 BTUs required

what?

step-by-step explanation:

what do you need with. i love quadrants. can you tell me ?

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