Y= 3x+2 is the gradient of a straight line graph where does it cross the y-axis?

It crosses the y-axis at 2 bc y=mc+b b is your y intercept

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!