Answer:
-34(39) + -81........
Step-by-step explanation:
Area = 1/2 * base * height
base = the vertical line form (x1 y2) to (x1 y1) = 6 units
height = horizontal line from the vertical line to point (x3 y3) = 7 units
So area of triangle = 1/2 * 6 * 7 = 21 sq units
We see that the differences are -9, -3, +3, and +9. Thus, we see that the function is symmetric about x=2 (I'm assuming the five values correspond to x=0, 1, 2, 3, 4) and increases at a rate similar to (x-2) squared. With that in mind, we classify this function as a parabola, as the standard form of a parabola (y=a(x-h)^2 + k) shows similar growth to this function.
Trinomial is the ancer to the first one