Subtract 8/10 from 4/10 but just the numerator (the top number) and you will get 4/10
Answer: D
Step-by-step explanation:
It shows the bar going left, meaning its going higher, and we only marked 2
1. Slope = -7
Y intercept= 8
Put the value of the letters with " over the original
So for A we have 3 in the front and 4.5 for A"
4.5/3 = 1.5
We can check if this is actually the scale factor but using the other numbers
The second numbers for A and A" are 6 and 9
6 * 1.5 = 9
So for point A it is 1.5
Use the same thing for G. That gives you 2
For B, you get 0.5
So the scale factors are 1.5, 2, and 0.5
