TI-84+ Family Quick Reference Sheet - Algebra 2 - Quick guide for key functions

Oct 13, 2026

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TI-84+ Family Algebra 2 quick reference sheet compiling calculator workflows for common tasks across algebra functions, logs, exponents, summations, statistics, regressions, scatter plots, inverse checking, and complex-number display. It explains how to find intersection points, verify inverse functions, compute logarithms and cube-root notation, generate sequences, and produce one-variable statistics from lists. It also covers linear regression setup, plotting, and normal distribution commands including normalcdf, normalpdf, and shading options.

LanguageEnglish

CategoryPresentations

FormatPDF

Pages1

AccessFree to download

Intersection and inverse

Find intersection points

Check inverse

Logs and exponents

Log base 10

Exponent and roots

Summations and sequences

Summations

seq and statistical formats

Statistical tools

1-Variable statistics

Scatter plots and regressions

Normal distributions

normalcdf

normalpdf and shading

Save This Sheet ! TI-84+ Family Quick Reference Sheet Algebra 2 Calculator ID \#: Choose 2nd MEM,\#1 About ID**** - **** - **** | To Find Intersection Pts:
1. Graph both equations.
2. Use CALC menu (2nd TRACE) Choose \#5 Intersect
3. Move near the intersect location.
4. Simply press 3 times to reveal the answer.
If you are looking for more than one intersection point, repeat this process. | | | | --- | --- | --- | | | | | | Check Inverse:
Enter your algebraic inverse in Y1 . Graph. Use DRAW \#8DrawInv to verify it is correct. | | | | | | | | | To see −25 = 5i , use a + bi mode.
| | | | | | Logs and Exponents: 1. The LOG key is log base 10. log 64 2. To enter: log 4 64 use log 4 1 3. 273 is 27^(1/3) remember ( ) Summations: 7 􀂦 (2k + 2) Enter sum(seq(2x+2, x, k 7, 1) • 2nd STAT(LIST)– MATH- \#5 sum • 2nd STAT(LIST)– OPS- \#5 seq The format for seq: expression, variable, starting value, ending value, increment. To Get Statistical Information: 1. Place data in Lists: STAT → EDIT 2. Engage 1-Variable Statistics: STAT → CALC \#1 1-VAR STATS 3. On Home Screen indicate list containing the data: 1-VAR STATS L 1 Functions: Y1 = f (x) and Y2 = g (x)( f + g)(x) → Y3 = Y1 + Y2 ( f − g)(x) → Y3 = Y1 −Y2 ( f g)(x) → Y3 = Y1Y2 ( f / g)(x) → Y3 = Y1 / Y2 Composition: ( f g)(x) → Y3 = Y1 (Y2 ) | To Get Scatter Plots and Regressions
(Linear, Quadratic, Exponential, Power, etc):
1. Place data in Lists: STAT → EDIT
2. Graph scatter plot: STAT PLOT \#1 Choose ON. Choose the symbol for scatter plot, choose L 1 , L2, choose mark
3. To graph, choose: ZOOM \#9
4. To get regression equation: STAT → CALC \#4 Lin Reg(ax+b) | | | --- | --- | | ( or whichever regression is needed)
5. On Home Screen: LinReg(ax+b) L 1 , L2 , Y 1
[6. to](6. to) see graph – GRAPH

To get Y 1 to appear:
VARS → Y-VARS Choose FUNCTION, Y 1
OR ALPHA F4 | | | | | | Normal Distributions DISTR(2nd VARS)
1. normalcdf (lower, upper, mean, s.d.) Finds prob. on cumulative interval.
• to enter ∞, use 10^99 or 1 EE 99.
2. normalpdf(x, mean, s.d.) Graphs the normal distribution.
• Window: Xmin = mean – 3 s.d. ; Xmax = mean + 3 s.d. ; Xscl = s.d.
Ymin = 0; Ymax = 1/(2 s.d.); Yscl = 0
3. ShadeNorm(lower, upper, mean, s.d.) To see area and % under curve.
• must graph using normalpdf first, or you won’t see your shading. | |

FAQs

How do you find intersection points using the TI-84+?

Graph both equations, then use CALC (2nd TRACE) → Intersect (#5). Move near the intersection location and press ENTER three times to reveal the answer.

How can you check an algebraic inverse on the TI-84+?

Enter the inverse in Y1, graph it, and use DRAW → DrawInv (#8) to verify it is correct.

What TI-84+ functions are used for normal distribution probability and graphing?

Use normalcdf(lower, upper, mean, s.d.) for probabilities and normalpdf(x, mean, s.d.) to graph the normal distribution; use ShadeNorm for shaded area and percentages under the curve.

Oct 13, 2026

Upload by Ophelia