Use the fact that for points (a1, b1) and (a2, b2) in the coordinate plane, we can calculate the slope of the line through these points using the following formula. Slope = Δy Δx = b2 − b1 a2 − a1 Find the point where the line through (1, 4) with slope -4 crosses the horizontal axis. (Suggestion: The line must fall by 4 units to reach the horizontal axis.) (x, y) = ( , )
Use the fact that for points (a1, b1) and (a2, b2) in the coordinate plane, we can calculate the slope of the line through these points using the following formula. Slope = Δy Δx = b2 − b1 a2 − a1 Find the point where the line through (1, 4) with slope -4 crosses the horizontal axis. (Suggestion: The line must fall by 4 units to reach the horizontal axis.) (x, y) = ( , )
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 94E
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Use the fact that for points
(a1, b1) and (a2, b2)
in the coordinate plane, we can calculate the slope of the line through these points using the following formula.
Slope =
=
Δy |
Δx |
b2 − b1 |
a2 − a1 |
Find the point where the line through (1, 4) with slope -4 crosses the horizontal axis. (Suggestion: The line must fall by 4 units to reach the horizontal axis.)
(x, y) = ( , )
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