3 years ago

The graphs of two linear equations ax + by = c and bx - ay = c, where a, b, c are all not equal to zero.

1 answer:

4 0

Let us find the slopes of the two lines

ax+by=c, slope m1 = -a/b

bx-ay=c, slope m2 = b/a

m1*m2 = (-a/b)(b/a) = -1

Therefore the two lines are perpendicular so the answer is D

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Step-by-step explanation:

Since they are collecting 20 pounds of cans each week, the slope is 20/1, or 20.

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3 years ago

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<h3>Answer: H = {3, 5, 7}</h3>

Explanation:

We simply list any odd number that is between 2 and 8. The term "roster form" can be thought of as listing the roster of a sports team (eg: baseball). So instead of describing what the numbers look like, we list out the numbers themselves. Those numbers being 3, 5 and 7.

Something like {2,4,6,8} is ruled out because we're dealing with odd numbers only.

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ANSWER:
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