Answer:
I would answer if I could see the following expressions :)
The first one because it goes through pretty much all the points on the graph.
Answer:
okay im sorry but i can only help with the first page so im going to use the first equation as an example. when it tells you what x equals in this case four you put it in place of the variable and put it all together and see if those two numbers egual the amount given. so here it written out:
x +11=15 x= 4
4+ 11 + 15.
in this case yes the given numbers equal the amount.
really hope this helped you!
Step-by-step explanation:
Answer:
y=-2x+8
Step-by-step explanation:
Evaluate the slope:
(8-0)/(0-4)= 
Find the Y-intercept:
y=8 $=c$ when x=0
Using the form: $y=mx+c$, we have the equation as:
$y=-2x+8$