C - divide 20 by 2 1/2 and you’ll get eight
If you need help actually ask a question :l
Answer:
Either 
or 
.
Step-by-step explanation:
.
Hence, there are two possibilities to consider:
- Either
, - Or
.
If 
, then 
.
Substitute into the original equation: 
. Solve for 
: .
Important: verify that the solution meet the assumption . Indeed, 
and is indeed non-negative. Hence, the solution 
is valid.
On the other hand, if , then 
.
Substitute into the original equation: 
. Solve for : .
Similarly, verify that the solution 
satisfies the current assumption that . Indeed, this assumption is met, and is also a valid solution.
In the linear equation ; "y= mx + b" , "m" = the slope of the line , and "b" = the y-intercept . So the y-intercept is the value of y at the point where the line crosses the y axis .
