Help please ASAP really need this

Blue Line: y = 4x - 1

Green Line: y = -x + 6

Red Line: y = -x

Step-by-step explanation:

Looking at the equation y = mx + b

- The first giveaway is that the green line is the highest y-intercept (b- value). So we can say it's y = -x + 6

- Second giveaway is that the blue line has the lowest y-intercept (again the b- value). So we can say it's y = 4x - 1

- Third giveaway is that the red line has the same x-intercept AND y-intercept which is y = -x. Both intercepts are (0, 0).

Lastly, the rest of the statements are true in correspondence of the last 3 statements.

answer: x=60

i dont know the answer but here's a picture of a dog