Solve the system by graphing.

x+y= 9

x-y= -1

select the correct choice below and, if necessary, fill in the answer box within your choice.

a.
the solution set is { }
(type an ordered pair.)

b.
there are infinitely many solutions. the solution set is { (x, y) | ? }.
(type an equation.)

c.
there is no solution. the solution set is empty set.

graph the equation.

Option A. The solution set is (4,5)

Step-by-step explanation:

Solve the equation for y to obtain the form of the equation of the line.

You have:

y=-x+9 (The slope is -1 and the y-intercept is 9)

y=x+1 (The slope is 1 and the y-intercept is 1)

When you graph it you obtain the graph shown in the figure attached.

The solution is the intersection of the lines.

Then, the solution set is (4,5)

step-by-step explanation:

395.84

step-by-step explanation:

2πrh+2πr²

2 (pie)(radius)(height)+2(pie)(radius)^2