Square root -64 minus square root - complex numners.. i am so confused

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5

Graph the equationy= x+3[tex]y = x + 3[/tex]