Answer: -5 and 1
Step-by-step explanation:
x-intercept means where a certain equation touches the x-axis. At this point the value of y will be 0.
So, put y = 0 in y = x² + 4x -5
0 = x² + 5x - x - 5
0 = x(x + 5) - 1(x + 5)
0 = (x - 1) (x + 5)
Either,
x - 1 = 0
x = 1
Or,
x + 5 = 0
x = -5
