The decimal adds a zero every time the powers of ten increase for example if u do 1 x

=100 if u do 1x

=1,000
The vertex form of the function gives the vertex as (-6,48). The vertex of f(x)=x^2 is (0,0) so from this information, the vertex is moved LEFT 6 and UP 48. This cancels out two options. The coefficient -3 tells us that the graph is flipped or reflected over the x-axis (negative sign flips graph) and that all y-values will be 3 times as large. Larger y-values for the same x inputs makes the graph narrower.
A= 1
B= -5
C= 10
In order to figure it out, you can think about it like this..
Greater because a centimeter is smaller than an inch.