What are the x-intercepts of the function y = x2 – x – 120?
2 answers:
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Answer:
a) (x, y) = (1, 7)
Step-by-step explanation:
Let be the following system of inequalties:
We can find the right option by evaluating each option in the system of inequalities:
a) (x, y) = (1, 7)
Then,
(TRUE)
(FALSE)
(1, 7) is not a solution of the system of inequalities.
b) (x, y) = (1, -7)
Then,
(TRUE)
(TRUE)
(1, -7) is a solution of the system of inequalities.
c) (x, y) = (1, -5)
Then,
(TRUE)
(TRUE)
(1, -5) is a solution of the system of inequalities.
d) (x, y) = (-1, 6)
Then,
(TRUE)
(TRUE)
(-1, 6) is a solution of the system of inequalties.
Therefore, we conclude that correct answer is A.