Question:
Find the Vertex
3. y= x*2+ 18х - 75

a) (-6,9)
b) (9,-6)
c) (9,6)

Is that a multiple sign between the x and 2?

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.