Datermine whether the graphs of y = 7x + 2 and 7x – y = 0 are parallel, perpendicular, or neither. v ---Select--- parallel perpendicular 미5 5,

Algebra and Trigonometry (6th Edition)
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Author:Robert F. Blitzer
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Are the graphs of y = -5x + 6 and x – 5y = -10 parallel, perpendicular, or neither?
We will find the slope of each line and then compare the slopes.
If the slopes are equal, the lines are parallel. If the slopes are negative reciprocals,
the lines are perpendicular. Otherwise, the lines are neither parallel nor
perpendicular.
The graph of y = -5x + 6 is a line with slope -5. To find the slope of the graph of x
5y = -10, we will write the equation in slope-intercept form.
х — 5у %3D —10
у3 —х — 10
To eliminate x from the left side, subtract x from both sides.
-5y
To isolate y, undo the multiplication by -5 by dividing both sides by -5.
=
-5
-5
y =
+
m =
1/5 because x/5 = 1/5 x.
X +
The graph of y =
5
is a line with slope +.
Since the slopes -5 and
are negative reciprocals, the lines are perpendicular. This is verified by the fact that
the product of their slopes is -1.
5
= -1
-5
Determine whether the graphs of y = 7x + 2 and 7x – y = 0 are parallel, perpendicular, or neither.
V ---Select---
parallel
perpendicular
neither
Transcribed Image Text:Are the graphs of y = -5x + 6 and x – 5y = -10 parallel, perpendicular, or neither? We will find the slope of each line and then compare the slopes. If the slopes are equal, the lines are parallel. If the slopes are negative reciprocals, the lines are perpendicular. Otherwise, the lines are neither parallel nor perpendicular. The graph of y = -5x + 6 is a line with slope -5. To find the slope of the graph of x 5y = -10, we will write the equation in slope-intercept form. х — 5у %3D —10 у3 —х — 10 To eliminate x from the left side, subtract x from both sides. -5y To isolate y, undo the multiplication by -5 by dividing both sides by -5. = -5 -5 y = + m = 1/5 because x/5 = 1/5 x. X + The graph of y = 5 is a line with slope +. Since the slopes -5 and are negative reciprocals, the lines are perpendicular. This is verified by the fact that the product of their slopes is -1. 5 = -1 -5 Determine whether the graphs of y = 7x + 2 and 7x – y = 0 are parallel, perpendicular, or neither. V ---Select--- parallel perpendicular neither
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