Which of these is a Pythagorean triad?

A. 5, 12, 13
B. 1, 2, 3
C. 6, 9, 10

Last one hope this works

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!