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lana [24]
1 year ago
8

Without sketching the graph, find the x-intercepts and y-intercepts of the graph of the equation y=x²-x-6 What is/are the x-inte

rcept(s)? Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. The x-intercept(s) is/are (Type an integer or a simplified fraction. Use a comma to separate answers as needed.) OB. There are no x-intercepts What is/are the y-intercept(s)? Select the correct choice below and, if necessary, fill in the answer box within your choice O A. The y-intercept(s) is/are (Type an integer or a simplified fraction. Use a comma to separate answers as needed.) OB. There are no y-intercepts Click to select and enter your answer(s)
Mathematics
1 answer:
oksian1 [2.3K]1 year ago
5 0

Given the equation:

y=x^2-x-6

Let's find the x-intercepts and the y-intercepts of the graph.

• x-intercept:

The x-intercept are the points where the parabola crosses the x-axis. At x-intercept the y-value is zero.

To find the x-intercepts, substitute 0 for y and solve for x.

We have:

0=x^2-x-6

Rewrite the equation:

x^2-x-6=0

Factor the left hand side of the equation:

(x-3)(x+2)=0

Equate each factor to zero:

x - 3 = 0

Add 3 to both sides:

x - 3 + 3 = 0 + 3

x = 3

x + 2 = 0

Subtract 2 from both sides:

x + 2 - 2 = 0 - 2

x = -2

Therefore, the x-intercepts are:

3, -2

• y-intercept:

The y-intercept is the point where the parabola crosses the y-axis. The x-value at the y-intercept is zero.

To find the y-intercept, substitute 0 for x and solve:

\begin{gathered} y=0^2-0-6 \\  \\ y=-6 \end{gathered}

Therefore, the y-intercept is -6.

In point form:

x-intercept: (3, 0), (-2, 0)

y-intercept: (0, -6)

ANSWER:

A. The x-intercepts are (3, 0), (-2, 0)

A. The y-intercept is (0, -6)

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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<u />\displaystyle \frac{4}{5} = \frac{x}{30}<u />

<u />

<u>Step 2: Solve for </u><em><u>x</u></em>

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