Genevieve is going to throw a rock from the top a trail overlooking the ocean. When she throws the rock upward from 160 feet above the ocean, the function $h(t)=-16t^2+48t+160$ models the height, $h$ , of the rock above the ocean as a function of time, t . Find the zeros of this function which tell us when the rock will hit the ocean. 

Ali is going to throw his rubber band ball upward from the top of a campus building. When he throws the rubber band ball from 80 feet above the ground, the function $h(t)=-16t^2+64t+80$ models the height,$h$, of the ball above the ground as a function of time, t. Find the height of the ball at t=2 seconds.

Ali is going to throw his rubber band ball upward from the top of a campus building. When he throws the rubber band ball from 80 feet above the ground, the function $h(t)=-16t^2+64t+80$ models the height, h, of the ball above the ground as a function of time, t. when the ball will be 80 feet above the ground?

Calib is going to throw his lucky penny from his balcony on a cruise ship. When he throws the penny upward from 128 feet above the ground, the function $h(t)=-16t^2+32t+128$ models the height, $h$ , of the penny above the ocean as a function of time, t . Find the zeros of this function which is when the penny will hit the ocean.

Calib is going to throw his lucky penny from his balcony on a cruise ship. When he throws the penny upward from 128 feet above the ground, the function $h(t)=-16t^2+32t+128$  models the height,$h$, of the penny above the ocean as a function of time, t . Find when the penny will be 128 feet above the ocean.

1.  For the function $f(x)=x^2-8x+3$ , find x when $f(x)=−4$ .

Calib is going to throw his lucky penny from his balcony on a cruise ship. When he throws the penny upward from 128 feet above the ground, the function $h(t)=-16t^2+32t+128$  models the height,$h$ , of the penny above the ocean as a function of time, t . Find the height the penny will be at t=1 seconds which is when the penny will be at its highest point.

Hamza wants to put a deck in the corner of her backyard in the shape of a right triangle. The length of one side of the deck is 7 feet more than the other side. The hypotenuse is 13. Find the lengths of the two sides of the deck.

Genevieve is going to throw a rock from the top a trail overlooking the ocean. When she throws the rock upward from 160 feet above the ocean, the function $h(t)=-16t^2+48t+160$ models the height, $h$, of the rock above the ocean as a function of time, t . Find the height of the rock at t=1.5 seconds.

Genevieve is going to throw a rock from the top a trail overlooking the ocean. When she throws the rock upward from 160 feet above the ocean, the function $h(t)=-16t^2+48t+160$ models the height, $h$, of the rock above the ocean as a function of time,t . Find when the rock will be 160 feet above the ocean.