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Which of the following is the graph of f(x) = x2 + 3x − 4?

Which of the following is the graph of f(x) = x2 + 3x − 4?-example-1
Which of the following is the graph of f(x) = x2 + 3x − 4?-example-1
Which of the following is the graph of f(x) = x2 + 3x − 4?-example-2
Which of the following is the graph of f(x) = x2 + 3x − 4?-example-3
Which of the following is the graph of f(x) = x2 + 3x − 4?-example-4

2 Answers

2 votes

Answer:

2nd graph

Explanation:

Given

f(x) = x² + 3x - 4

To find the zeros let f(x) = 0 , that is

x² + 3x - 4 = 0 ← in standard form

(x + 4)(x - 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

x - 1 = 0 ⇒ x = 1

The only graph with zeros at x = - 4 and x = 1 is the 2nd graph

User Edmamerto
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7.9k points
4 votes

Second graph is a required answer

Which of the following is the graph of f(x) = x2 + 3x − 4?-example-1
User Skb
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8.1k points

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