Question

What is the slope of a line that is defined by x+y=10

Answer 1

-1

Explanation:

Turn into slope-intercept form.

x + y = 10

~Subtract x to both sides

y = 10 - x

~Reorder

y = -x + 10

We know that slope-intercept form is y = mx + b where m = slope and b = y-intercept. Thus, the slope is -1.

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