Graphing linear functions

Question

find three solutions for this linear function and choose the correct graph by clicking on it

h(x) = x² -16

x - 4

Answer 1

h(x) = (x+4)(x-4)/(x-4) = x+4

x+4 = 0

x = -4

x = -4. but x can't = 4 as that makes the denominator = 0

any 2nd degree polynomial has potentially 2 solutions or zeroes. Sometimes just 1 or 0. Never 3.