Do you have answer choices?
<h2>Mary drives 7 miles!</h2><h3 /><h3>2cm / 4mi = 1cm / 2mi</h3><h3>1(2) + 2.5(2) = 7</h3><h3 /><h3><em>Please let me know if I am wrong.</em></h3>
The axis of symmetry in a parabola is a line that's vertical that divides into 2 congruent halves.
I believe the answer is 4. I did an assignment and got it right