Tell whether each line has a positive, negative, zero, or undefined slope.
Hint
Positive slopes move "uphill" from left to right.
Answer
Orange is negative, blue is positive, light blue is undefined, and green has a slope of zero.
Find the slope and x- and y-intercepts of this line.
Pick two points to find the slope. Seriously, any two points.
x-intercept = 2, y-intercept = 3, slope = -1.5
We can use the intercepts as points for the slope. Two birds with one stone.
x-intercept = -3, y-intercept = 1, slope = ⅓
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