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Josephine Reynoso
Variations on Translating a Point
Mar 03, 9:39:30 PM
?.
The image of the point (-9,9) under a translation is (-5, 13). Find the coordinates
of the image of the point (-6, -7) under the same translation.
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attempt 1 out of 2

75

step-by-step explanation:

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204