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Exam 7: Quadratic Equations, Functions and Inequalities

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Exam 1: Linear Equations and Inequalities in One Variable151 Questionsadd course
Exam 2: Linear Equations in Two Variables and Functions140 Questionsadd course
Exam 3: Systems of Linear Equations and Inequalities118 Questionsadd course
Exam 4: Polynomials175 Questionsadd course
Exam 5: Rational Expressions and Rational Equations121 Questionsadd course
Exam 6: Radicals and Complex Numbers168 Questionsadd course
Exam 7: Quadratic Equations, Functions and Inequalities121 Questionsadd course
Exam 8: Exponential and Logarithmic Functions and Applications144 Questionsadd course
Exam 9: Conic Sections80 Questionsadd course
Exam 10: Binomial Expansions, Sequences, and Series60 Questionsadd course
Exam 11: Online: Transformations, Piecewise-Defined Functions, and Probability83 Questionsadd course
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A catapult is designed to launch circus performers from a raised platform. After launch, the height of the performer in feet is given by h(t)=−16t2+80t+32h ( t ) = - 16 t ^ { 2 } + 80 t + 32 where t is seconds after launch. After how many seconds is the performer at ground level? Round to the nearest tenth of a second.

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