Given the piecewise function, what is f(1)?

Given the piecewise function, what is f(-4)?

The number of tomatoes produced in a crop at various summer temperatures is shown in the graph below. Which is the regression model that best represents this data?

The number of minutes napped per day compared to age is modeled by the graph below. Which is the regression model that best represents this data?

A projectile is launched into the air from the ground. The table shows the height of the projectile at different times.

Neglecting air resistance, the distance a rock falls from rest varies directly as the square of time. If a rock falls 64 feet in 2 seconds, how far will it have fallen in 5 seconds?