The function shown can be used to determine the nth term of a sequence. f(n) = 8 + 18
Which sequence does the function represent?
CA. 10, 2, 6, 14, ...
OB. 8, 10, 28, 36, ...
O c. 18, 10, 2, -6,...
o D. -8, -26, -44, -62, ...

It’s going to be d. 4x^2-4x-19’

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.