How to:
a+b-mx=0
a+b=mx
(a+b)/x=m
That is a ratio. 7 x 3 = 21 and 13 x 3 = 39.
Given:
The equation of a line is:

The line is dilated by factor 3.
To find:
The result of dilation.
Solution:
The equation of a line is:

For
,




For
,




Divide both sides by 2.


The given line passes through the two points A(0,5) and B(2,2).
If the line dilated by factor 3 with origin as center of dilation, then

Using this rule, we get


Similarly,


The dilated line passes through the points A'(0,15) and B'(6,6). So, the equation of dilated line is:




Multiply both sides by 2.



Therefore, the equation of the line after the dilation is
.
Answer:
252
Step-by-step explanation:
560x0.45 is 252
10 + 2p
increases by means addition
product means multiplication