Problem It takes 48 minutes for 7 people to paint 7walls. How many minutes does it take 20 people to paint 20 walls?
2 answers:
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<h3>Answer: Choice (d)</h3>
Explanation:
To reflect over the y axis, we apply this rule
which says to flip the sign of the x term but keep the y coordinate the same.
So that means something like J(-2,5) becomes J ' (2, 5). The other points are handled in the same fashion and that leads us to choice (d). Points on the y axis will stay where they are.