The graph of which function has a minimum located f(x) = - 1/2 x2 + 4x – 11
O f(x) = -2X2 + 16x - 35
O f(x) = 1/2x2 - 4x +5
O f(x) = 2x2 – 16x + 35

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0

correct answer:

b.(19,-2)