Answer is (0,-8) see picture:
There are many variables that will equal 5. Star off by making a chart ....
The numbers in the parentheses are subtracted first
24-18=6
15(6)=90
344.181818182 would be the exact answer
Positive parabola that has a minimum.
It’s positive if it opens upward, negative if it opens downward. It has a minimum if it opens upward, and maximum when it opens downward.