Answer:
Step-by-step explanation:
These equations are all written in slope-intercept form, so the question is relatively easy to answer. These rules apply.
- if slopes are different: 1 solution
- if slopes are the same and y-intercepts are different, 0 solutions
- if slopes are the same and y-intercepts are the same, infinitely many
1. y=-6x-2; y=-6x-2 --- infinitely many
2. y=0.5x+5; y=0.5x+1 --- zero
3. y=0.25x-2; y=5x-4 --- one
4. y=2x+3; y=4x-1 --- one
5. y=2x+1.5; y=2x+1.5 --- infinitely many
6. y=-x-3; y=-x+3 --- zero
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Slope-intercept form is ...
y = mx +b
m is the slope
b is the y-intercept
