human
Work out the equation of a line when given a positive gradient and a point on the line A line has a gradient of \( 4 \) and passes through the point \( (1,9) \). What is it's equation? \( y=4 x+9 \)
gpt
Believes  c, in y=mx+c, will be the y value of the coordinate given despite the x coordinate not being 0.