What is the vertex for f(x)=-x^2

Landon wrote that 3−2.6=4. which statement about his answer is true?

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy. how much will she pay after the discount