Alberto is painting a large triangle on one wall of his bedroom. the base of the triangle is 4 ft, and the height is 8 ft. it takes 0.2 quart of paint to cover 1 square foot. how many quarts of paint does alberto use?

a. 0.8 qt
b. 1.6 qt
c. 3.2 qt
d. 6.4 qt

Option C.

Step-by-step explanation:

Step 1

Find the area of triangle

we know that

The area of a triangle is equal to

where

b is the base of triangle

h is the height of triangle

In this problem we have

substitute in the formula

Step 2

By proportion

the answer is c. hope this !

step-by-step explanation:

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.