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  1. AP Pre Calculus
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Functions Involving Parameters, Vectors, and Matrices

Question 1
college-boardPre-CalculusAPExam Style
1 mark

How would parametric functions represent x and y?

Question 2
college-boardPre-CalculusAPExam Style
1 mark

If the position of an object is given by parametric equations x(t)=sin⁡(t)+cos⁡(t)x(t)=\sin(t)+\cos(t)x(t)=sin(t)+cos(t) and y(t)=sin⁡(t)−cos⁡(t)y(t)=\sin(t)-\cos(t)y(t)=sin(t)−cos(t), what is dydx\frac{dy}{dx}dxdy​ at time t=π4t=\frac{\pi}{4}t=4π​?

Question 3
college-boardPre-CalculusAPExam Style
1 mark

What describes the behavior of a function that alters its direction abruptly at certain points on its graph?

Question 4
college-boardPre-CalculusAPExam Style
1 mark

What is the first step to eliminate the parameter in the parametric equations x=3t+2x = 3t + 2x=3t+2 and y=2t−5y = 2t - 5y=2t−5?

Question 5
college-boardPre-CalculusAPExam Style
1 mark

When translating between Cartesian equations and parametric forms, which element is typically replaced with expressions involving 't'?

Question 6
college-boardPre-CalculusAPExam Style
1 mark

In parametric functions, what typically represents the independent parameter?

Question 7
college-boardPre-CalculusAPExam Style
1 mark

What do you need to find in order to create a table that will help you graph a set of parametric equations?

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Question 8
college-boardPre-CalculusAPExam Style
1 mark

For a projectile modeled by parametric equations x(t)=v0cos⁡(θ)tx(t) = v_{0} \cos(\theta)tx(t)=v0​cos(θ)t and y(t)=v0sin⁡(θ)t−(g2)t2y(t) = v_{0} \sin(\theta)t - \left( \frac{g}{2} \right)t^{2}y(t)=v0​sin(θ)t−(2g​)t2, where ggg represents gravity, what affects the time it takes for the projectile to reach maximum height?

Question 9
college-boardPre-CalculusAPExam Style
1 mark

If a parameter 't' in a parametric function is described as being continuous, what type of number must 't' be?

Question 10
college-boardPre-CalculusAPExam Style
1 mark

For a space probe traveling along a path described by x(t)=e−tcos⁡(t)x(t)=e^{-t} \cos(t)x(t)=e−tcos(t), y(t)=e−tsin⁡(t)y(t)=e^{-t} \sin(t)y(t)=e−tsin(t), at what time 't' is its speed minimized within the interval (0, ∞)?