User manual
58
After searching close to x = 18, the point (18, 324)
appears to be the vertex of the parabola since it
appears to be the turning point of the set of points of
thisfunction. To search closer to x=18, change the
Step value to smaller and smaller values to see points
closer to (18,324).
Š³
Problem
A charity collected $3,600 to help support a local food
kitchen. $450 will be given to the food kitchen every
month until the funds run out. How many months will
the charity support the kitchen?
Reminder: If x = months and y = money left, then
y=3600N450x.
I 2
-
3600 U 450 z
< 0 $ 1 $ " < $ <
Input each guess and press
< .
Calculate the value of f(8) on
the Home screen.
% s I
1Selects f(
8 ) <
30XPlusMV_OM.flpgl Page 58 Friday, November 14, 2014 1:57 PM