Answer:
Step-by-step explanation:
The slope of the line in question is the same as the slope of the line parallel to it. Using y = mx + b, where m is the slope, we find the slope of our line is -3.
Using the pt-slope form, y - y1 = m( x - x1), we get y - (-1) = -3( x - 2) or y + 1 = -3x + 6. Which leads us to y = -3x + 5. QED
The multiplicative rate of change for the exponential change is 3
So the mean is adding up all the numbers and dividing by how many numbers are there.
So, 11+15+19+17+23+20+17+13+18+21= 174
then divide by how many numbers there are.
There are 10 numbers
174 divided by 10 equals 17.4
So, your answer is 17.4inches.
Hope this helped :)