The following graph describes function 1, and the equation below it describes function 2:

function 1

graph of function f of x equals negative x squared plus 8 multiplied by x minus 15

function 2

f(x) = −x2 + 2x − 15

function has the larger maximum.
(put 1 or 2 in the blank space)

Function 1 ⇒ 
Function 2 ⇒ 

Both functions are shown in the graph below

As well as graphing, we can also find out the function with the highest maximum by using the formula to find the x-coordinate when the function is maximum/minimum



Maximum vertex for function 1 is 
Maximum vertex for function 2 is 

Hence the function with the highest maximum is function 1