2 years ago

Rewrite each equation in slope-intercept form, if necessary. Then determine whether the lines are parallel. Explain,

1 answer:

8 0

Answer:
d

Step-by-step explanation:

Slope intercept form: y = mx + b

y = -x + 7
x + y = 21

x + y = 21
-x -x
y = -x + 21

y = -x + 7
y = -x + 21

Parallel lines have the same slope. Here, our slope is -1

Therefore, our final answer is d.

Hope this helps!

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