Unit 4 lesson

3. a model rocket is lauched from a roof into a large field. the path of the rocket can be modeled by the equation y=-0.8x^2+12x+25.8 were x is the horizontal distance, in meters from the starting point on the roof and y is the height , in meters of the rocket above the ground. how far horizontally from its starting point will the rocket land? round your answer to the nearest hundredth.
a. 25.80
b. 37.00
c. 17.24
d. 16.91

a physics student stands at the top of a hill that has an elevation of 56 meters. he throws a rock and it goes up into the air and then falls back past him and lands on the ground below the path of the rock can be modeled by the equation y=-0.04x^2+1.3x+56 were x is the horizontal distance in meters from the starting point on the top of the hill and y is the height in meters of the rock above the ground
a. 56.00
b 24.54
c. 57.04
d. 57.26

5. how many real number solutions does the equation have? 0=-4x^2+7x-8
a. no solutions
b. one solution
c. two solutions
d. infinitely many solutions

if anyone has the answers to the unit 5 lesson 10 unit test: quadratic functions and equations unit test it would be so