Answer:
for
Therefore, plot an open circle at (-2, -8)
Input another value of x which is less than -2 into the function. Plot this and join to create the line. As the domain of this function is
it only has one endpoint at (-2, -8). Therefore, add an arrow to the other end to show that it continues.
for
Therefore, plot a closed circle at (-2, -2)
Input other values of x that are greater than -2 into the function and plot to help plot the curve of the function. As the domain of this function is
it only has one endpoint at (-2, -2). Therefore, add an arrow to the other end to show that it continues.