Use the graph to answer the Question below
What are the roots of the equation x2 + 3x - 4 = 0?
A.
1, 4
B.
-1, -4
C.
-1, 4
D.
-4, 1
Correct answer is D
x2 + 3x – 4 = 0 has roots value at the curve makes touches with the x – axis. The curve contact is at x = -4 and +1.