Perform an online search for datasheets of three different operational amplifier models. Suggested manufacturers include Analog Devices, Texas Instruments, and Microchip. Review the datasheets to determine the listed values for the slew rate for each amplifier. Not all datasheets specify the slew rate - if you cannot find this parameter in the datasheet that you selected then find a different datark Results of your datasheet search for the slew rates of three different op-amps. Include the manufacturer, part number, and part description, and stated slew rate value from each datasheet.