For every 4 miles vanessa jogged, cody jogged 3 miles. if vanessa jogged 1 mile, how far would cody have jogged

Alright here's the breakdown:

it said every 4 miles Vanessa jogged, Cody jogged 3 miles.

so

Vanessa jogged 1 mile

that means 

Cody jogged .75 of a mile ( or 75% of 1 )

because

Cody will always jog 75% of  how much Vanessa joged 

so say that

Vanessa jogged 50 miles

all you do is take 75% of how much Vanessa jogged

and that should be how much Cody joged 

hopes this helps!

Aquadratic function is one of the form f(x)=ax2 + bx + c l, where a,b, and c are numbers with are not equal to zero.