Algebra Formulas For Graphs

Algebra question I can not solve this …?
No calc chart … ] = Please help the formula T = 2pi sqrt can L/9.8 used to estimate the number of seconds it takes a pendulum lenth L mt make a full swing. Graph the equation on a graphing calculator. Then use the graph to estimate the values of t for clocks of length 1.5 meters and 2.5 meters.
you need a Graphic Calc
Algebra: graphing lines 1

