Answer:
y = x + 2
Step-by-step explanation:
As the equation of a line is in the form y = mx + c:
Step 1 - Calculate the y intercept
This can be done by looking at the y coordinate where x = 0:
y = mx + c
In the picture, the y intercept is 2 so:
y = mx + 2
Step 2 - Calculate the slope
This can be calculated by:

Get two sets of coordinates:
(0, 2) and (2, 4)
Calculate the changes by subtracting from one another:

So the gradient is 1, meaning the equation of the line is:

Hope this helps!
Answer:
1/5 is the fraction of 20%.
Answer:
p*0.55
Step-by-step explanation:
Step one:
given data
let the original price be p
let the discounted sale be A
45% of the original price is given as
Step two:
A= p-0.45p
factor p out
A=p(1-0.45)
A= p*0.55
(1+0.19/12)^(12))-1) =0.20745
= 20.74%
rounded to nearest tenth = 20.7%
Answer is A