Which one of these transformations would produce an image that is not congruent to its pre-image?
a translation of (x - 2y + 9)
a translation followed by a rotation
a rotation of 270 degrees about the origin
a dilation followed by a translation

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

If m 17 27 90 63 ** picture is attached

What line represents the relationship between r and s