Casio 300W Sharp EL-531R
Casio 300W
- Turn on your calculator by pressing
[ON]
Put your calculator in LR mode by pressing Mode [3] [1]
Clear your statistical Memory by pressing [SHIFT] [AC] [=]
To enter the first data point, press [0] [,] [(-)] [2] [M+]- the comma button is just above the red DEL key.
To enter the second data point, press [2] [,] [5] [M+]
To find the y-intercept (a) of the linear equation, press [SHIFT] [7]
To find the slope (b) of the linear equation, press [SHIFT] [8]
The equation for the line that passes through these two slopes is y = a + bx, where you replace a and b with the values you just calculated.
Sharp EL-531R
- Turn on your calculator by pressing
[ON/C]
Put your calculator in variable 2 mode by pressing Mode [2ndF] [DRG] [2]
Clear your statistical Memory by pressing [2ndF] [DEL]
To enter the first data point, press [0] [STO] [+/-] [2] [M+]- your display will read n = 1.
To enter the second data point, press [2] [STO] [5] [M+]
To find the y-intercept (a) of the linear equation, press [RCL] [(]
To find the slope (b) of the linear equation, press [RCL] [)]
The equation for the line that passes through these two slopes is y = a + bx, where you replace a and b with the values you just calculated.