Question

One set of equations that give us parallel lines:
*
1 point
y = 2x - 4 and y = 7x - 4
y = 1/2x + 2 and y = 1/2x - 4
y = -4x + 7 and y = 4x - 7
y = -1/4x + 5 and y = 4x - 5
One set of equations that give us perpendicular lines:
*
1 point
y = 2x - 4 and y = 7x - 4
y = 1/2x + 2 and y = 1/2x - 4
y = -4x + 7 and y = 4x - 7
y = -1/4x + 5 and y = 4x - 5
Parallel lines give us _____ solutions.
*
1 point
No solutions
Infinite solutions
One solution
Two solutions
You cannot tell the number of solutions from the graph
Perpendicular lines give us _____ solutions.
*
1 point
No solutions
Infinite solutons
One solution
Two solutions
You cannot tell the number of solutions from the graph
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Answer 1

One set that gives parallel lines:
- y = 1/2x + 2 and y = 1/2x − 4 (both slopes = 1/2)

One set that gives perpendicular lines:
- y = −1/4x + 5 and y = 4x − 5 (slopes −1/4 and 4, product = −1)

Parallel lines give us: No solutions (they never intersect)

Perpendicular lines give us: One solution (they intersect at exactly one point)