Triangle QRS is translated 7 units right then rotated 90 degrees clockwise about the origin. The vertices of the triangle AFTER these transformations Q'' (6,-1), R''(0,-1), and S''(0,-7). what are the vertices of the ORIGINAL triangle

Hi, this question has been asked before! Here's the answer they gave:

The task is to find the original coordinates with the transformed ones given, so you have to apply the inverse of the stated transformations.

Q"( 6,-1),R"(0,-1) and S"(0,-7)

-> rotate 90 anti-clockwise

Q'(1,6), R'(1,0),S'(7,0)

-> translate left by 7 units

Q(-6,6), R(-6,0), S(0,0)

Credits to them for the answer.

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: