what is the rule for
8 units to the left, 2 units up
the rule is
(x,y) --------> (x-8,y+2)
the rule 6 units to the right , 4 units down
the rule is
(x,y) ------> (x+6,y-4)
Remember that
if the translation is at right is x+
if the translation is at left is x-
if the translation is up y+
if the translation is down is y-
The rule for the reflection across the x-axis is equal to
(x,y) --------> (x,-y)
Find the coordinates of triangle JKL
looking at the graph
J(-4,2)
K(2,5)
L(8,4)
Apply the rule
J(-4,2) ------- J'(-4,-2)
K(2,5) -------- K'(2,-5)
L(8,4) -------> L(8,-4)
Part c
Triangle JKL and triangle J'K'L' are congruent