Question

A line passes through the point (0,-5). The gradient of this line is 3.

Write down the equation of this line

Answer 1

The equation of the line is;

y = 3x -5

Explanation:

Here, we want to write down the equation of the line

We can use the point-slope form

y-y1 = m(x-x1)

(x1,y1) represents the given point (0,-5)

m represents the slope = 3

Substituting these values

y-(-5) = 3(x-0)

y + 5 = 3x

y = 3x - 5