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Question 1102789: Plz help me with these few questions, thanks guys, you are all amazing
1) Weite an equation In slope Intercept form of the line hat passes through the given point and Is perpendicular to th graph of the given shaps
(5, 0) ; y + 1 = 2?(x - 3)
A) Y = -1/2x + 5
B) Y = 2x - 5
C) y = 1/2x - 2
D) Y = -1/2x + 5/2
2) Determine whether the graphs of the given equations are parallel, perpendicular, Or nither
Y = -2x + 3
2x + Y = 7
A) Parallel
B) Perpendicular
C) Niether
3) Determine whether the graphs of the given equations are parallel, Perpendicular, Or niether
Y = x + 11
Y = -x - 2
A) Parallel
B) Perpendicular
C) Niether
4) Determine whether the graphs of the given equations are parallel, Perpendicular Or nither
Y = -2x + 3
2x + 4y = 0
A) Parallel
B) Perpendicular
C) Niether
5) Determine whether the given equations are parallel, Perpendicular, Or Niether
Y = 4x - 2
-x + 4y = 0
A) Parallel
B) Perpendicuar
C Niether
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Look at this problem, and remember that parallel lines have the same slope, and the slope of perpendicular lines are negative inverses.
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Find the slope and y intercept of the line, and graph:
2x+3y=18
I got the slope as: -2/3
and the y intercept as: (0,6) is this correct? Also how do I graph that?
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Solve for y, --> slope-intercept form y = mx + b
y = (-2/3)x + 6
m = -2/3 (slope)
b = 6 (y-intercept)
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1) Weite an equation In slope Intercept form of the line hat passes through the given point and Is perpendicular to th graph of the given shaps
(5, 0) ; y + 1 = 2?(x - 3)
A) Y = -1/2x + 5
B) Y = 2x - 5
C) y = 1/2x - 2
D) Y = -1/2x + 5/2
2) Determine whether the graphs of the given equations are parallel, perpendicular, Or nither
Y = -2x + 3
2x + Y = 7
A) Parallel
B) Perpendicular
C) Niether
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Find the slope of the 2 graphs.
Y = -2x + 3
2x + Y = 7 ---------- Solve for y
y = -2x + 7
The slope is -2, same as the 1st equation.
---> parallel.
=====================================================
3) Determine whether the graphs of the given equations are parallel, Perpendicular, Or niether
Y = x + 11
Y = -x - 2
A) Parallel
B) Perpendicular
C) Niether
The slope of the 1st eqn is +1
The slope of the 2nd eqn is -1
They are negative reciprocals ----> perpendicular.
=======================================================
4) Determine whether the graphs of the given equations are parallel, Perpendicular Or nither
Y = -2x + 3
2x + 4y = 0
A) Parallel
B) Perpendicular
C) Niether
Solve the 2nd eqn for y. then the slope is the coefficient of x.
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5) Determine whether the given equations are parallel, Perpendicular, Or Niether
Y = 4x - 2
-x + 4y = 0
A) Parallel
B) Perpendicuar
C Niether
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Solve the 2nd eqn for y. then the slope is the coefficient of x.
If the slopes are equal, they're parallel.
If the product of the 2 slopes = -1, they're perpendicular.
otherwise, neither.
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