Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Get immediate and reliable answers to your questions from a community of experienced experts on our platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

Which point is an [tex]$x$[/tex]-intercept of the quadratic function [tex]$f(x)=(x+6)(x-3)$[/tex]?

A. [tex]$(0,-6)$[/tex]
B. [tex]$(6,0)$[/tex]
C. [tex]$(-6,0)$[/tex]
D. [tex]$(3,0)$[/tex]


Sagot :

To find the [tex]\(x\)[/tex]-intercepts of the quadratic function [tex]\(f(x) = (x + 6)(x - 3)\)[/tex], we need to determine the values of [tex]\(x\)[/tex] for which [tex]\(f(x) = 0\)[/tex].

Here are the detailed steps:

1. Set the function equal to zero:
[tex]\[ (x + 6)(x - 3) = 0 \][/tex]

2. Apply the zero-product property, which states that if a product of two factors is zero, then at least one of the factors must be zero:
[tex]\[ x + 6 = 0 \quad \text{or} \quad x - 3 = 0 \][/tex]

3. Solve each equation for [tex]\(x\)[/tex]:
[tex]\[ x + 6 = 0 \quad \Rightarrow \quad x = -6 \][/tex]
[tex]\[ x - 3 = 0 \quad \Rightarrow \quad x = 3 \][/tex]

These solutions give us the [tex]\(x\)[/tex]-values of the [tex]\(x\)[/tex]-intercepts. The [tex]\(x\)[/tex]-intercepts are the points where the graph crosses the [tex]\(x\)[/tex]-axis, and their coordinates are:
[tex]\[ (-6, 0) \quad \text{and} \quad (3, 0) \][/tex]

Among the given choices:
- [tex]\((0, -6)\)[/tex]: This point is not an [tex]\(x\)[/tex]-intercept.
- [tex]\((6, 0)\)[/tex]: This point is not an [tex]\(x\)[/tex]-intercept.
- [tex]\((-6, 0)\)[/tex]: This point is an [tex]\(x\)[/tex]-intercept.

Thus, the point [tex]\((-6, 0)\)[/tex] is an [tex]\(x\)[/tex]-intercept of the quadratic function [tex]\(f(x) = (x + 6)(x - 3)\)[/tex].
We appreciate your time on our site. Don't hesitate to return whenever you have more questions or need further clarification. Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. Westonci.ca is your go-to source for reliable answers. Return soon for more expert insights.