Answer:
To find the scale factor, locate two corresponding sides, one on each figure. Write the ratio of one length to the other to find the scale factor from one figure to the other. In this example, the scale factor from the blue figure to the red figure is 1.6 : 3.2, or 1 : 2.
Step-by-step explanation:
Wouldn't it just be 300 kilometers per hour as the answer?
Substitute x with -12
1/3(9+(-12) = 1/3(-3)
the answer is -1