Question

Point B(6, -3) is translated using the rule (x -5 y + 9) what is the y coordinate of B'

Answer 1

This rule shows how we transition the x-coordinate and y-coordinate when finding B'.

In this rule, it shows us what to add/subtract from the x-value and y-value in the coordinate. We can see that it wants us to subtract 5 from the x-value (based on the "x - 5") and that it wants us to add 9 to the y-value (based on the "y + 9"). Based on this information, we can find B':

$\textrm{B}'(6 - 5, -3 + 9)$

$\boxed{\textrm{B}\,'(1, 6)}$

The "y-coordinate" of B' is 6.