which set of transformations would prove δlmn ~ δpqr?

dilate δpqr by the scale factor of 2 from point r, and translate δp′q′r′ by the rule (x + 0, y − 1).
dilate δpqr by the scale factor of 2 from point q, and translate δp′q′r′ by the rule (x + 1, y + 0).
translate δpqr by the rule (x + 1, y + 1), and dilate δp′q′r′ by a scale factor of 2 from point p.
translate δpqr by the rule (x + 1, y − 1), and dilate δp′q′r′ by a scale factor of 2 from point r.

The answer is D

Translate ΔPQR by the rule (x + 1, y − 1), and dilate ΔP′Q′R′ by a scale factor of 2 from point R.

Step-by-step explanation:

Translate ΔPQR by the rule (x + 1, y − 1), and dilate ΔP′Q′R′ by a scale factor of 2 from point R.

Step-by-step explanation:

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