Chapter 1, Problem 30RE

29. Jason jumped off a cliff into the ocean in Acapulco while vacationing with some friends. His height as a function of time could be modeled by the function h(t) = -16t + 16t - 480, where t is the time in seconds and h is the height in feet. What was Jason's height after 3 seconds?* Your answer

Which statement(s) correctly describe y-intercepts? Which all apply? A. The y-intercept of a function is the point where the line intersects the y-axis. B. The y-intercept of a function is the point at which x = 0. C. The y-value of the y-intercept is the same as the starting value, b.

2. Tell whether or not each function is increasing or decreasing, and give the domain, range, and y-intercept of the function. a. y= 4 b. y= -3(4)* Increasing or Decreasing Increasing or Decreasing Domain - Domain - Range - Range - y-intercept - y-intercept -

EXPLAIN: 1. How do you graph a function? 2. How do you know that the graph is a graph of a function?

Determine whether the equation defines y as a function of x. (See Example 9.) * + (y - 8)? = O is a function O is not a function

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