Find the equation of the line through (2,3) and rising 4 units for every unit increase in x-axis

Question

Mathematics

Kaiya Cook

24 March, 00:38

Find the equation of the line through (2,3) and rising 4 units for every unit increase in x-axis

+5

Answers (1)

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Kassidy Andrews · Answer 1

Slope is 4 (rising 4 units for every unit increase in x-axis, by definition)

y = ax + b

y = 4x + b,

substitiute x=2, y=3 to find b

3=4*2+b

3=8+b

b=-5

So,

y = 4x - 5