JAMB 2018 · UTME · Q9

Coordinate geometry

What is the equation of the line that cuts the $y$ -axis at $(0, 5)$ and the $x$ -axis at $(5, 0)$ ?

Worked solution (try it first)

Gradient: $\dfrac{0 - 5}{5 - 0} = -1$ .
The line cuts the $y$ -axis at 5, so $c = 5$ .
So $y = -x + 5$ , option C.

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