MATH SPOKEN HERE! Classes

$Class Table$

Solve w/Graphing Calulator

Solve: Graphically; w/Calculator: with TI82, with TI83, TI85 or TI86, TI89; Some Sample Problems

Solve the equation x + 2 = - x + 3 with a TI82

: 1st: Rewrite the equations so one side or member is 0.; 2nd: Press [MATH] then [0:Solver(]; 3rd: Enter the expression in step 1 as part of the argument of the Solver function.; Also enter the variable, x, and; a constant or seed value or guess to start the computation.; Ex. Solve(expression, variable, seed; Ex. Solve(x + 2 + x - 3, x, 5; 4th: Press [ENTER] to solve.

Solve the equation x + 2 = - x + 3 with a TI83
: 1st: Rewrite the equations so one side or member is 0.; 2nd: Press [MATH] then [0:Solver(]; 3rd: Press the curser to get up to the equation line.; 4th: Type the expression from step 1 after the =.; 5th: Press the curser down to the line with the variable you wish to find.; 6th: Press [SOLVE], which is [ALPHA][ENTER], to solve.

Solve the equation x² + 3x = 9 with a TI84
: 1st: Rewrite the equations so one side or member is 0.; 2nd: Press [MATH] then [0:Solver(]; 3rd: Press the curser to get up to the equation line.; 4th: Type the expression from step 1 after the =.; 5th: Press the curser down to the line with the variable you wish to find.; 6th: Press [SOLVE], which is [ALPHA][ENTER], to solve.

Click on image to enlarge.

Solve the equation |x-3| = 2 with a TI84
1st: Use the [C:Numeric Solver...] in the [MATH] Menu (three buttons down on the left-most column).
2nd: Edit the left expression/side/member of the equation, here labeled E1, to be solved. Here, the absolute value function is needed and found in [MATH], [NUM] (for NUMBER) Menu as
[1:abs(] (for absolute value)
3rd: Press ENTER to go to E2, the right expression/side/member of the equation and edit as needed.
4th: Press [ALPHA], [ENTER], to [SOLVE].
5th: Enter/use a "seed," a starting point for solving computation.
6th: Use another "seed" if you need to seek another root.

Solve the equation x + 2 = - x + 3 with a TI85 or TI86

: 1st: Press SOLVER (above GRAPH); 2nd: Enter the equation; Ex. equ:leftside = rightside; Ex. equ:x + 2 = - x + 3 (The = is above [STO>].; 3rd: Press [ENTER]; 4th: Be sure the curser is on the line with the varible you want.; 5th: On the soft keypad, press [SOLVE].

Solve on the calculator using POLY (85, 86).

: 1st: Press POLY (above PRGM); 2nd: Enter order 2 for 2nd degree, 3 for 3rd degree, ...; 3rd: Enter each coefficient as pictured in the equation.; 4th: On the soft keypad, press [SOLVE].

Solve the equation x + 2 = - x + 3 with a TI89

: 1st: Press [F2], Algebra; 2nd: Press [Enter] for Solve(; 3rd: Continue typing on the command line:; Ex. solve(x+2=-x+3,x) entering the equation, a comma, then the variable, and a ) to end the arguement of the solve function; 4th: Press [ENTER].

Solve these problems with calculator and check the answer.

1.) x + 2 = - x + 3

2.) x + 5 = 5 + x

3.) x + 5 = 6

4.) x + 5 = 7 + x

Solve and check the first 4 before solving these.

5.) x + 2 = 0

6.) x² - 5x - 14 = 0