Here is the graph of a function .

Function f on coordinate plane, no grid. Horizontal x axis from negative 5 to 4 by 1's. Vertical y axis from negative 15 to 10 by 5's. Function begins in quadrant 3 near negative 5 comma negative 15, moves upwards and to the right, curving around negative 1 comma negative 5, passing through 0 comma negative 3, and then curving upwards and passing through 2 point 25 comma 0.

1. On the same axis, sketch a graph of reflected over the -axis and then translate it 3 units up.
2. Write an equation (in terms of ) for a function that has the graph that you drew.

The thermostat in an apartment is set to  while the owner is awake and to  while the owner is sleeping. The function gives the temperature , in degrees Fahrenheit, in the apartment hours after midnight. When it is hot outside, the owner changes the settings to be exactly 10 degrees warmer than to save energy. The function gives the temperature , in degrees Fahrenheit, hours after midnight when it is hot outside.

1. If , then what is the corresponding point on ? Use function notation to describe the point on .
2. If , then what is the corresponding point on ? Use function notation to describe the point on .
3. Write an expression for in terms of .

A ball is hit in the air. Its height , in feet, seconds after it is hit is modeled by the equation . Which equation models the height of a ball following the same path but is hit 2 seconds after the first ball?