If given two points A 3 12 and B 5 22 on a x-y ... - JAMB Mathematics 2019 Question
If given two points A(3, 12) and B(5, 22) on a x-y plane. Find the equation of the straight line with intercept at 2.
A
y = 5x + 2
B
y = 5x + 3
C
y = 12x + 2
D
y = 22x + 3
correct option: a
The equation of a straight line is given as: \(y = mx + b\)
Where:
m = the slope of the line
b = intercept
Given the points A(3, 12) and B(5, 22),
slope = \(\frac{22 - 12}{5 - 3}\)
= \(\frac{10}{2}\) = 5
Hence,
the equation of the line is \(y = 5x + 2\).
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