A. (0,-6)
plug in the area to the area formula for a triangle (A=1/2bh). so 28=1/2b(4) [since the height is 4]. divide by 4 (7=1/2b). multiply by 2/divide by 1/2 (14=b). the base equals 14 units long.
B. y=2/3x+4
find the slope of the line (2/3)
the y-intercept is 4

Therefore, find f(2) and g(2) first before subtracting.

Therefore,

Then find g(2)

Then put f(2) to subtract g(2)

Therefore, the answer is (f-g)(2) = -49.
Option A is right answer that is write a linear function that expresses the book value of the computer as the function of its age. (slop-intercept form)
Answer:
It is (A) y = 67.2
<em>Hope this helped ya :)</em>
You are trying to find what x to put into f(x) to get out 46. To do this, solve the following equation.



Therefore x = 7 or x = -7
-7, 7