Notice that e^(- 4) means that x=- 4 in the function y=e^x.
y≈ 0.0183
Practice makes perfect
To draw y=e^x, first push the button Y= and enter the equation in the first row. We can write e on a calculator by pushing 2nd and $÷$.
Having entered the function, we press the GRAPH button to draw it on a coordinate plane.
To find the value of e^(- 4), we can use the trace feature to find the value of the function at x=- 4. This can be done by pressing 2nd, TRACE, and choosing the value option. Finally, enter - 4 and it will give you the value of e^x when x= - 4.
Rounded to four decimal places, the value of e^(- 4) is 0.0183.
