Answer:
4x -3y = -12
Step-by-step explanation:
We need the slope and the y intercept
It crosses the y axis at y =4 so the y intercept is 4
(0,4)
We need another point to help us find slope
Another point is (-3,0)
We have 2 points we can find slope using
m = (y2-y1)/ (x2-x1)
= (0-4)/(-3-0)
=-4/-3
=4/3
The slope 4/3 and the y intercept is 4
y = mx+b
y = 4/3 x+4
Multiply by 3
3y = 3*4/3x + 3*4
3y =4x+12
Subtract 4x from each side
-4x+3y = 4x-4x+12
-4x+3y =12
Multiply by -1
4x -3y = -12
#1 is A & B (points connect)
#2 is A & B & D (because they all touch)
#3 I don't know
#4 I think it's G, C, & F
#5 D
<span>You are not supposed to be wallpapering the ceiling or the floor. Because of that the formula to answering this question is: 2(h*w) + 2(l*w) [to account for the 4 walls being wallpapered]
2(9 x 18) + 2(9 x 20)
2(162) + 2(180)
324 + 360
684 is the answer
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