mommasgonzales01
04.02.2020 •
Mathematics
After a dilation with a center of (0, 0), a point was mapped as (2, _5) _ (3, y). a student determined y to be _2.5. evaluate the student's answer.
a.
the student is correct.
b.
the student incorrectly calculated the scale factor as 0.5.
c.
the student incorrectly divided by the scale factor instead of multiplying by it.
d.
the student incorrectly added the scale factor instead of multiplying by it.
Solved
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Ответ:
From the first coordinate, a = 3/2,
therefore y = -5*3/2 = -7.5 not -2.5
If the factor "a" were 0.5 then y would be -5*0.5 = -2.5(the result he got) Therefore B. should be the correct answer
B.
The student incorrectly calculated the scale factor as 0.5.
Ответ:
B) The student incorrectly calculated the scale factor as 0.5.
Ответ:
step-by-step explanation:
the j-curve effect refers to a "j" shaped section of a time-series graph in which the curve falls into negative territory and then gradually rises to a higher level than before the decline.