Find the​ y-intercept and slope of the linear equation. b. Explain what the​ y-intercept and slope represent in terms of the graph of the equation. c. Explain what the​ y-intercept and slope represent in terms relating to the application.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section1.3: Lines
Problem 92E
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A ball is thrown straight up in the air with an initial velocity of 60feet per second​ (ft/sec). According to the laws of​ physics, if you let y denote the velocity of the ball after x​ seconds, y=60−32x.
 
a. Find the​ y-intercept and slope of the linear equation.
b. Explain what the​ y-intercept and slope represent in terms of the graph of the equation.
c. Explain what the​ y-intercept and slope represent in terms relating to the application.
 
a. The​ y-intercept of the linear equation is b0=
 
The slope of the linear equation is b1=
 
b. The​ y-intercept gives the​ y-value at which the line intersects the ___________ (y-asix or x-axis).  The slope indicates that the​ y-value _________ (increases, decreases) by ______ unit(s) for every increase in x of 1 unit.
 
c. The​ y-intercept is the velocity of the ball at time _______
​second(s). The slope represents the fact that the velocity of the ball (increases, decreases) by______ ft/sec every ______ (foot, second)
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