 ## 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      © 2007, 2012, 2017, 2022 A. Azzolino www.mathnstuff.com/math/spoken/here/2class/400/solve.htm