How many real solutions does the equation 7x^{2}-4x-12=0 have?
1 point
1
Question 2
2.
The graph of y=ax^{2}+bx+c is shown below. Which of the following statements must be true? Select all that apply.
1 point
1
Question 3
3.
Use the quadratic formula to solve the equation.
m^{2}-5m+6=0
1 point
1
Question 4
4.
What is the solution set of the equation 4x^{2}-12x+9=0?
1 point
1
Question 5
5.
A waterfall has a height of 1500 feet. A pebble is thrown upward from the top of the falls with an initial velocity of 12 feet per second. The height of the pebble h in feet after t seconds is given by the equation h(t)=−16t^{2}+12t+1500. How long after the pebble is thrown will it hit the ground?
You do not need to convert your square root expression into decimal form. You may leave your answer as x= \frac{-b \pm \sqrt{\textrm{something}}}{2a}.