Misha’s group was asked to write an expression equivalent to 7 y squared z + 3 y z squared minus 3. When Mr. Chen checked their answers, he found only one to be correct. Who had the correct answer? Misha’s Group Student Equivalent Expression Misha 4 y squared z minus 5 + 3 y z squared minus 3 y squared z + 2 Juan 9 y squared z minus 2 + 3 y z squared minus 2 y squared z + 1 Joe 7 y squared z + y z squared + 2 + 2 y z squared + 1 Helena 7 y squared z + 6 y z squared minus 5 minus 3 y z squared + 2 Misha Juan Joe Helena

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

i think it might be a but you might want a second opinion

answer:   y=2x-3

step-by-step explanation: