I don't understand.. but I think that I know why.. just give me a little more details about the question but here's my guess.:
It may be square root like the answer may be squared in order to answer a rectangular prism..
Or, it may be a power..
Sorry, I don't know if I was helping, but this is the best I could do b/c I don't know a lot about the problem
<h3>
Answer: -4</h3>
Work Shown:
f(x) = 3x + 2
f(-2) = 3(-2) + 2 ... each x replaced with -2
f(-2) = -6 + 2
f(-2) = -4
Since the line is parallel to AB, the two slopes are the same
slope of AB = m = (y₂-y₁)/(x₂-x₁)
m= (5-0)/(-6-(-3))= - 5/3
The equation of the line is y-y₁=m(x-x₁)
The origin P(0,0)
y=mx
y= -

x Solution
Y = -7sin(x) + 2cos(x)
y = -7sin(3π/4) + 2cos(3π/4)
y = -7sin(9.42/4) + 2cos(9.42/4)
y = -7sin(2.355) + 2cos(2.355)
y = -7(0.03698381721) + 2(0.9993158646)
y = -0.2588867205 + 1.998631729
y = 1.739745009