What is the equation of a line that has a slope of 2 and passes through the point (1,-9)?

I’m not sure what kind of equation you want but if you want point slope it’s
Y+9=2(x-1) because the formula is y-y1=m(x-x1) so you just fill it in but if this isn’t the kind of answer you were looking for I wouldn’t mind helping you in the comments :)

Look at this and see if it

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!