Which equation represents a line that passes through [tex]\left(4, \frac{1}{3}\right)[/tex] and has a slope of [tex]\frac{3}{4}[/tex]?

A. [tex]y - \frac{3}{4} = \frac{1}{3}(x - 4)[/tex]

B. [tex]y - \frac{1}{3} = \frac{3}{4}(x - 4)[/tex]

C. [tex]y - \frac{1}{3} = 4\left(x - \frac{3}{4}\right)[/tex]

D. [tex]y - 4 = \frac{3}{4}\left(x - \frac{1}{3}\right)[/tex]



Answer :

Let's begin by using the point-slope form of a linear equation to determine which given option is correct.

### Step-by-Step Explanation:

1. Point-Slope Form Equation:
The point-slope form of a line that passes through a point [tex]\((x_1, y_1)\)[/tex] with a slope [tex]\(m\)[/tex] is given by:
[tex]\[ y - y_1 = m(x - x_1) \][/tex]

2. Substitute the Given Values:
We are given a point [tex]\((4, \frac{1}{3})\)[/tex] and a slope [tex]\(\frac{3}{4}\)[/tex].
- Here, [tex]\(x_1 = 4\)[/tex]
- [tex]\(y_1 = \frac{1}{3}\)[/tex]
- [tex]\(m = \frac{3}{4}\)[/tex]

Substitute these values into the point-slope form:
[tex]\[ y - \frac{1}{3} = \frac{3}{4}(x - 4) \][/tex]

3. Matching with Given Options:
Now, we compare this equation with the provided options to find the matching one.

- Option 1: [tex]\(y - \frac{3}{4} = \frac{1}{3}(x - 4)\)[/tex]
This does not match because the constants and the slope are different.

- Option 2: [tex]\(y - \frac{1}{3} = \frac{3}{4}(x - 4)\)[/tex]
This matches exactly with our derived equation!

- Option 3: [tex]\(y - \frac{1}{3} = 4\left(x - \frac{3}{4}\right)\)[/tex]
This does not match because the slope is not [tex]\(\frac{3}{4}\)[/tex], and the constants are incorrect.

- Option 4: [tex]\(y - 4 = \frac{3}{4}\left(x - \frac{1}{3}\right)\)[/tex]
This does not match because the constants are incorrect and the point doesn't match.

Thus, the correct option is:

[tex]\[ \boxed{2} \quad y - \frac{1}{3} = \frac{3}{4}(x - 4) \][/tex]
If iam not mistaken its B