Which of the following equations has only one solution?

x^2 = 9
x(x - 1) = 9
x^2 - 6x + 9 = 0

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

When only separate discreet points are graphed it is called?

What is 1/3x5 on anuber line what does it look like on a number line