Number talk 4 fraction number line

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

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?

Which expression is equivalent to 16 in exponential form? a) 4 × 4 b) 8 × 2 c) 23 d) 24