Use cross products
X 16
-- --
100 20
Subsitute values for x and evaluate to get values for y
when x=5, y=1
when x=0, y=-1
when x=-5, y=-3
remember, ordered pairs are in (x,y) form
so 3 ordered pairs are
(5,1)
(0,-1)
(-5,-3)
Answer:
19 or m = 19
Step-by-step explanation:
7(13) - 4(13) = m + 20
91 - 52 = m + 20
39 = m + 20
subtract 20 from both sides to get m = 19
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