Determine whether the equation is linear in x.

A linear equation is an equation of a straight line, so the degree of a linear equation must be 0 or 1 for each of it’s variables. In this case the degree of the variable in the equation violates the definition, so this equation is not linear

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation:

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