Is the function represented by the table linear or nonlinear and why? x- 2,4,6,8 y- 10,9,8,7 a) the function is linear because all of the values on the table are positive b) the function is not linear because there is no x-value of 0 c) the function is linear because it decreases at a constant rate d) the function is not linear because the x- values and y-values are increasing in opposite directions

C) the function is linear because it decreases at a constant rate

Step-by-step explanation:

X-        2,4,6,8

Y-        10,9,8,7

To check whether the given function is linear or not linear , we need to check the difference of  x  and y values. we take (x,y)

(2,10)  and (4,9)

We find out the slope

Like that we find the slope using another two points

(6,8)  and (8,7)

We find out the slope

We got the same slope

So , function is linear.

Also we got slope = -0.5 that means the function decreases at a constant rate

answer: true

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