50 Math Tools
Input each guess and press <.
Calculate the value of f(8) on the Home
screen.
% s I
2 Selects f(
8 ) <
The support of £450 per month will last for 8 months since y(8) = 3600 - 450(8) = 0 as
shown in the table of values.
³ Problem
Find the intersection of the lines f(x)=L2x+5 and g(x)=x-4.
I 1 - M 2 z T 5
< - z U 4
< 2 < 1
Select Auto
< <
< $
The two lines intersect at (x,y) = (3,L1).
Matrices
In addition to those in the Matrix MATH menu, the following matrix operations are
allowed. Dimensions must be correct:
• matrix + matrix
• matrix – matrix
• matrix × matrix
• Scalar multiplication (for example, 2 × matrix)
• matrix × vector (vector will be interpreted as a column vector)