Answer:
See the graph attached. It has one solution: (6,-4)
Step-by-step explanation:
The slope-intercept form of a line is:

Where m is the slope and b is the intersection of the line with the y-axis.
Given the first equation 
You can identify that:
b=-1
Substitute y=0 to find the intersection with the x-axis

This line passes through the points (0,-1) and (-2,0)
Given the second equation:

Solve for y:

It passes through the point (0,-4).
Now, you can graph. See the figure attached.
It has one solution,which is the point of intersection of both lines: (6,-4)
18 + 1/2 x (9 - 4) =
18 + 1/2 x 5
18 + 2.5
20.5
20.5 is your answer.
Answer:
Rectangle C
Step-by-step explanation:
i just had this question and got it right
Answer:
solution is

Step-by-step explanation:
We are given equation as

Firstly, we will find equations
First equation is

Second equation is

now, we can draw graph
and then we can find intersection point
we can see that
intersection point is (1.353,1.613)
so, solution is
