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- 1. Multiple ChoiceSuppose that the equation V = 20.8x2 – 458.3x + 3,500 represents the value of a car from 1964 to 2002. What year did the car have the least value? (x = 0 in 1964)1965197019751980
- 2. Multiple ChoiceAn object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation s(t) = –16t2 + 64t + 80. What will be the object's maximum height?2 ft80 ft144 ft64 ft
- 3. Multiple ChoiceIf a toy rocket is launched vertically upward from ground level with an initial velocity of 128 feet per second, then its height h after t seconds is given by the equation h(t) = -16t2 +128t (if air resistance is neglected). When will the object reach its maximum height?4 ft0 seconds0 ft4 seconds
- 4. Multiple ChoiceA diver is standing on a platform above the pool. He jumps form the platform with an initi8al upward velocity of 8 ft/s. Use the formula h t = −16 t2 + 8t + 24, where h is his height above the water, t is the time, v is his starting upward velocity, and s is his starting height. How high is the platform?.25 ft24 ft25 ft8 ft
- 5. Multiple ChoiceThe function f(t) = -5t2+20t + 60 models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground?4 seconds-2 seconds-6 seconds9 seconds
- 6. Multiple ChoiceThe profit from selling local ballet tickets depends on the ticket price. Using past receipts, we find that the profit can be modeled by the function p= -15x2 +600x +60 , where x is the price of each ticket. What is the maximum profit you can make from selling tickets?$6060$20$600$10,250
- 7. Multiple ChoiceTrue or false:
The solution, root, x-intercept, and zero of a problem are all the same thingTrueFalse, because the solution and root are the same but the x-intercept and zero are differentFalse, because the x-intercept and root are the same but the zero and solution are differentFalse, they are all different - 8. Multiple ChoiceStandard form of a quadratic equationy=x²y=ax²+bx+cy=mx+by=x
- 9. Multiple Choice
.How many zeros does this parabola have?3201 - Answer choicesTagsAnswer choicesTags