SOLUTION: Detemine the area in square units of the triangle enclosed by the lines y=-4 x=5 and y=2x+16

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Question 182947: Detemine the area in square units of the triangle enclosed by the lines y=-4 x=5 and y=2x+16
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Detemine the area in square units of the triangle enclosed by the lines y=-4 x=5 and y=2x+16
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The easy way:
Move the triangle up 4 units. Then it's y = 0 (x-axis) and y = 2x+20. The 3rd line is vertical, so sliding the triangle up has no effect on x=5.
Then move it left 5 units --> y = 2x+30
Solve for the x and y intercepts:
x: (-15,0)
y: (0,30)
A= bh/2
A = 225 sq units