Respuesta :

Answer:

y= 11x + 20

y = 13x

Step-by-step explanation:

Both students head North.

Jenna travels 13 miles per hour or 13x. Her equation is y = 13x.

Alex starts 20 miles North which means he is +20 miles ahead of Jenna. He travels 11 miles per hour or 11x. His equation is y = 11x+20.