1.what is the vertex of the graph? (see attachment)
a.(2,2)
b.(1,3)
c.(3,1)
d.(0,2)
2. Is the vertex of the graph in problem 1 a maximum or a minimum?
a. maximum
b. minimum
c.neither
d.both
3. a ball is thrown into the air with an initial upward velocity of 46ft/s. Its height (h) in feet after t seconds is given by the function h=-16t^2+46t+6. after how many seconds will the ball hit the ground?
a. 3
b. 4
c. 5
d.6
4. A ball is thrown into the air with an initial upward velocity of 60ft/s. Its height (h) in feet after t seconds is given by the function h=-16t^2+6. what will the height be at t=3 seconds
a. 35 feet
b. 40 feet
c. 42 feet
d. 45 feet
5. solve. x^2-121=0
a.0
b. -11
c.11
d.11,-11
6. solve by factoring m^2+8m+7=0
a.8,7
b. -7,1
c. -7,-1
d.7,1
7. solve by factoring n^2+2n-24=0
a.-12
b.-2,12
c.-6,4
d. -4,6
8. one more rectangular-shaped piece of metal siding needs to be cut to cover the exterior of a pole barn. the area of the piece of 30 ft^2. the length is 1 less than 3 times the width. how wide should the metal piece be? round to the nearest hundredth of a foot.
a. 3.33ft
b. 4.3 ft
c. 1 ft
d. 30 ft
