It should be the last option. With linear functions, you should be graphing a straight line.
Answer:
y = -3 m = -1 b = 3
Step-by-step explanation:
-3y=3x-9
To isolate the y variable, divide both sides by -3.
y = -1x + 3
y = -3
m = -1
b = 3
Step-by-step explanation:
I'll leave the drawing part to you. However, you just have to note that if each of the tile is 1/2 ft, the height should be 5 squares and the width is 9 squares. The area of the section of the wall is calculated by multiplying the height and the width.
A = H x W = (2 1/2 ft) x (4 1/2 ft) = 11.25 ft²