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 =.

Click on image to enlarge.

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 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  
 

 
 
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