Question 919040
*[invoke slope -5, -10, -4, -3]


now we can use a slope and one point to find equation of a line:


*[invoke find_line_by_slope_and_point -5, -10, 7]


here is better picture of a graph:
(-4,-3)

{{{drawing( 600, 600, -10,10, -20, 30,grid(1),circle(-5,-10,.15),locate(-5,-10,p(-5,-10)), circle(-4,-3,.15),locate(-4,-3,p(-4,-3)), graph( 600, 600, -10,10, -20, 30, 7x+25)) }}}