Use the graph of f(t) = 2t + 4 on the interval [-4, 6] to write the function f(x), where f(x)=the integral from x to 2 of f(t)dt
a f(x) = x2 + 6x
b f(x) = x2 + 4x - 12
c f(x) = x2 + 4x - 8
d f(x) = x2 + 8x - 20

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

For the functions f(x) = -922 – 2x and g(x) = -32? + 6x – 9, find (f - g)(x) and (f - ).