MATH.... TRIANGLE JKL HAS VERTICES...

Mathematics

1 answer:

7nadin3 [17]3 years ago

6 0

<h3>Answer: Choice (d)</h3>

Explanation:

To reflect over the y axis, we apply this rule

$(x,y) \to (-x,y)$

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.

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The Pool Fun Company has learned that, by pricing a newly released Fun Noodle at $3, sales will reach 6000 Fun Noodles per day d

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PART A:
The generic equation of the line is:
y-yo = m (x-xo)
First we look for the slope of the line:
m = (y2-y1) / (x2-x1)
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Then, we substitute any point in the generic equation:
(xo, yo) = (4, 5000)
Substituting:
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Rewriting:
y = -1000x + 4000 + 5000
y = -1000x + 9000
The equation is:
y = -1000x + 9000

PART B:
For the price of 3.50 we have:
y = -1000 * (3.5) +9000
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