One angle measures 40°.the other two angles have the same measure. what is the measure of each angle?

If this is an isosceles triangle, and because of the fact that the sum of angles of any triangle must sum to 180°

(180-40)/2=70°

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!