The correct pairs of slope are:-
Zero slope (-5, -20) (-11, -20)
Positive slope (16,3) (16, -80)
Undefined slope (-1000, 2500), (500, 4000)
Negative slope (0, 4.25), (1.25, 1.75)
What is the slope?
A line's steepness can be determined by looking at its slope. The slope is calculated mathematically as "rise over run" (change in y divided by change in x).
(-5,-20) (-11, -20) Since their y value is the same, the line will be horizontal, making it have a zero slope.
(16,3) (16,-80) Since it has the points have the same x value, this is an undefined slope.
(-1000, 2500) (500, 4000) Positive slope, because as the x value increases, so does the y.
(0, 4.25) (1.25, 1.75) Negative slope, because as the x value increases the y value decreases.
Therefore, the correct pairs are given above.
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