Let's notice, the focus is at (5,0) and the directrix at x = -5.
keep in mind that there's a distance "p" from the vertex to either of those fellows, therefore, if the focus is at 5,0 and the directrix x = -5, the vertex is half-way between them, check the picture below.
notice the distance "p" there, now, is a horizontal parabola, opening to the right, meaning the value for "p" is positive, or just 5, thus
Step-by-step explanation:
<u>13,789:</u>
Tens: 13,790
Hundreds: 13,800
Thousands: 14,000
Ten thousands: 10,000
<u>24,173:</u>
Tens: 24,170
Hundreds: 24,200
Thousands: 24,000
Ten thousands: 20,000
<u>861,630:</u>
Tens: 861,630
Hundreds: 861,600
Thousands: 862,000
Ten thousands: 860,000
I think it’s D, sorry if I’m wrong.
2/12 is the correct answer