Question R16 Q6 - NSB 2011

For what real values of x is the function sqrt(x^2 + 6x - 40) defined?

W) -10 < x < 4

X) -4 < x < 10

Y) All x that do not lie in the closed interval from -10 to 4

Z) All x that do not lie in the open interval -4 to 10

Science Bowl Question