Suppose the triangles in problem 3 are isosceles triangles, where angle ade angle dec and angle eco are vertex angles

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!

J= r + 9 because since jessica rode 9 more miles than roger, you add 9 miles to rogers mileage.