Mathematics

Problem

Let

g(x)=\dfrac{(x-4)(x+5)}{x-4}

. Which description best characterizes the discontinuity at

x=4

? a)

g

is continuous at

x=4

. b) Removable (hole) discontinuity at

x=4

. c) Infinite (vertical asymptote) discontinuity at

x=4

. d) Jump discontinuity at

x=4