2. Which of these graphs represents a function?
NU
12
-5
1 2 3
UN
U UN
w.
X.
Na
NUD
5-4-3-2-4,
-2
Naudotis
S-
z.
Y

Find the solution of this system of equation -7x+y=-20 9x-3y=36

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.