Idon't know the answer to the last 2. anyone know the answer?

a) For the first one (f(x) = -2), you need to draw (or imagine) a line at y = -2. Find the places where that line intersects the given curve. Note the x-coordinates of those places.

The function f(x) has the value -2 at x = -1 and at x = 2.

b) For the second one, you do something similar. You draw (or imagine) a line at y=0. (This is the x-axis.) Find the places where the curve crosses that line. They look to be about x = -1.75, x = 0, x = 1.75.

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The curve actually has zeros at 0 and ±√3 ≈ ±1.732. The answers above are "close enough" and about what you'd expect to read from a graph like this.

sas (side angle side)

aa(angle angle)

sss(side side side)

sas you have to find two sides with an angle in between

aa you find two angles because it will always add up to 180

sss find all sides

step-by-step explanation:

yes.. it's proven to be 36.