Someone can find a free online graphing calculator at Meta-Calculator. On Meta-Calculator one can find graphing, scientific, matrix, statistics, and programmer's calculators.
webgraphing.com that should help
62.50 this is from Gardiany
Some TI83's can be set up differently, so it is highly recommendable to read the user guide for the TI83 in question. The user would need to go into the VarStat option and enter all the appropriate fields to have the calculator bring in the appropriate variables and totals.
See both related links below
There are several websites focused on mathematics that offer free online graphing calculators. Some of the best calculators are those found at Meta-Calculator, CoolMath, and Desmos.
Graph the equation then find the x intercepts.
Someone can purchase a Texas Instruments TI Plus Graphing Calculator from Amazon and eBay if they are on a budget. One can find good discounts from them or buy it used.
This link seems to fill the bill.
use a graphing calculator. chances are, it's not linear; it's probably got some high-degree function with non-whole number coefficients. i think you can download a free graphing calculator online.
To find the zeros of the function ( y = 2x^2 + 0.4x - 19.2 ), you can use a graphing calculator to graph the equation. The zeros are the x-values where the graph intersects the x-axis (where ( y = 0 )). By using the calculator's zero-finding feature, you should find the approximate values for ( x ). The zeros of the function are the solutions to the equation ( 2x^2 + 0.4x - 19.2 = 0 ).
Without using a graphing calculator the possible answer is: length = 40 metres and width = 20 metres because: Area = 40*20 = 800 square metres Perimeter = 40+40+20+20 = 120 metres