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The table gives pairs of values that lie on a straight line. Which rule fits them?

Class 8Linear GraphsCoordinate Geometry

A $y = 3 x + 2$
B $y = 4 x + 1$
C $y = x + 4$
D $y = 3 x - 2$

Step-by-Step Solution

y

rises by 3 for each step of

x

, so

y = 3 x + c

. At

x = 1 : 5 = 3 + c, c = 2

. Check:

x = 4

gives 14.

Answer: A)

y = 3 x + 2

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