Answer: #1. yes it's a function #6. the graph is increasing at (-oo , 2) , #7. the graph is decreasing at (2,oo) ,
Step-by-step explanation:
hope it helps
Answer:

Step-by-step explanation:
We are to factorize the expression
completely. To do this, we will apply the expression below;
The expression can be rewritten as 
To factorize the expression, we need to first factorize
first

The we will make
the subject of the formula as shown;




This last result gives the expansion of the expression
Answer:
1)
Step-by-step explanation:
First you need to do your equation to..... =0 first
So you just minus 13 from 22 and get 9
Then you just do your completing the square
Answer:
y = 1/2x + 0.5
or
y = 1/2x + 1/2
Step-by-step explanation:
y = mx + b
b is y-intercept:
when x = 0, y = 0.5 (when the line cross the vertical (y) axis of the graph)
the point is (0, 0.5) so b = 0.5
m is slope:
slope = rise / run
rise = 1
run = 2
for every 2 x values, y increase by 1
slope (m) = 1/2