Iwas gone today at school and know i have no clue what to do!

4x + 2x= 90  (since it is a right angle)

6x = 90
divide both sides by 6
x = 15

Then  plug back into the expressions 4x and 2x for your final answers. Remember, the two answers combine should be 90 degress

4x = 4(15) 60
3x = 2(15) 30

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!