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)

you should pay $0.88

what is the image?

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: