Answer: it’s easy look it up on a calculator
Step-by-step explanation:
Given:
The point is B(2,5) and its image is B'(1,2.5).
To find:
The scale factor.
Solution:
If a figure is dilated by the scale factor k and (0,0) is the center of then the scale factor is defined as

x-coordinate of point B' is 1 and the x-coordinate of point B is 2. So, the scale factor is

Therefore, the scale factor is
and the correct option is D.
Answer: -10
Step-by-step explanation:
It is -10 because you have to switch the order of operations to get negative.
Hope it helps!
Answer:
B. slope: 3/2, y-intercept: 5
Step-by-step explanation:
Rewrite in slope-intercept form. The slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.
18/2,27/3,36/4,45/5,54/6,63/7,72/8, and 81/9 can be some.