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2

A function is basically a collection of points. Often those points are plotted and a curve is drawn through them to make a graph (eg: parabola). Each point is in the form (x,y) where x is the input and y is the output. We can say that y = f(x) because f(x) is also another way to state the output.

We want to find the output when the input is x = -3. Look through the given points to find which has an x coordinate of -3. That is the point (x,y) = (-3,2). The y coordinate here is y = 2. So that explains how f(-3) = 2

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

898.1666667

step-by-step explanation:

5389/6 = 898.1666667