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naomihiggins4033
23.06.2019 •
Mathematics
Look at the table of values below. x y 1 3 2 7 3 11 which equation is represented by the table? a. y = 2x + 1 b. y = 3x + 2 c. y = 4x − 1 d. y = 5x − 3 < its a plato question
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Ответ:
C. y = 4x − 1
Step-by-step explanation:
xy
13
27
311
We can find the slope
m = (y2-y1)/(x2-x1)
= (11-7)/(3-2)
= 4/1
The slope is 4
The only equation with a slope of 4 is
y = 4x − 1
Check a point
(1,3)
y = (4)*1 -1
y=3
Checks so this works
Ответ:
x^2 - 4x + 4x - 16
x^2 - 16
Hope this helps.