I think it’s 2/7=8/28 1/4=7/28
Hello,
To find the scale factor, we have to look at what's going on in the problem.
In point A, we are converting from (5, 3) to (7.5, 4.5).
We can write and solve equation to find the change (scale factor)
5x = 7.5 and 3x = 4.5
If you solve either equation, you will find the scale factor is 1.5.
Good luck,
MrEQ
You could say that a(n) = 12 - 5n .
Then ...
a(1) = 12 - 5 = 7
a(2) = 12 - 10 = 2
a(3) = 12 - 15 = -3
and so on.
So it seems to work.
Answer:
(-9, -3) - Interval over which the difference of the numbers of sales is negative.
(4.9, 10 ) - Interval over which the difference of the numbers of sales 15 positive
(-3, 10) - Interval over which the difference of the numbers of tale decreasing
(0, 4.9) - Interval over which the difference of the numbers of sales is increasing
Hope this helps!
