Answer:
Find x;
tg 45º= x/7
x=7*tg45º
x=7*1=7
Answer= x=7
Find y;
Cos 45º=7/y
y=7/ Cos45º
y=7/(√2/2)=14/√2=14√2/2=7√2
Answer= 7√2≈9.9.
Step-by-step explanation:
Answer: 
Step-by-step explanation:
- The equation of the line in the slope intercept form is: 
Where m is the slope and b is the y-intercept of the line
- Let's choose two points of the line: (8,-1) and (-4,-4).
- You must calculate the slope of the line as following:

- As you can see in the graph attached, the line intersects the y-axis at -3, then b=-3.
- Substituting values into the equation of the line, you obtain:

4x=2x+12
-2x from both sides
2x=12
divide both sides by 2
x=12