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