What is the slope-intercept equation of the line below?

Step-by-step explanation:

(0, -1)  (1, -3)

(-3 + 1)/(1 - 0)= -2/1= -2

y + 1 = -2(x - 0)

y + 1 = -2x + 0

y = -2x - 1

answer is C

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves

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