Question

Which system below has no solution?

(THESE ARE THE CHOICES, SO DON'T GIVE INPROPER ANSWER PLSSSSS.)
A) y = -4^x and y = 2x - 3
B) y = 4^x and y = 2x - 3
C) y = -4^x and y = 2x + 3
D) y = -4^-x and y = 2x - 3

Answer 1

Explanation:

A system has no solution if the 2 (or more) functions that make up the system do not intersect. The only pair of functions here that do not have an intersection is found in D. You could graph these 2 on a graphing calculator to see that this is true.