Which of the following inequalities matches the graph?

graph of an inequality with a solid vertical line through the point (−7, 0) and shading to the left of the line

x greater then or equal to −7
x less than or equal to −7
y less than or equal to -7
y greater than or equal to -7

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

the radius is 2 times the diameter.

step-by-step explanation: