Answer :
To find the equation of the line passing through the points [tex]\(\left(\frac{2}{5}, \frac{18}{20}\right)\)[/tex] and [tex]\(\left(\frac{1}{3}, \frac{11}{12}\right)\)[/tex] in slope-intercept form, we'll follow these steps:
1. Convert Fractions to Decimals: Start by converting the fractions in the coordinates to decimals:
- [tex]\(\frac{2}{5} = 0.4\)[/tex]
- [tex]\(\frac{18}{20} = 0.9\)[/tex]
- [tex]\(\frac{1}{3} \approx 0.3333\)[/tex]
- [tex]\(\frac{11}{12} \approx 0.9167\)[/tex]
2. Calculate the Slope (m): Use the formula for the slope between two points [tex]\((x_1, y_1)\)[/tex] and [tex]\((x_2, y_2)\)[/tex]:
[tex]\[
m = \frac{y_2 - y_1}{x_2 - x_1}
\][/tex]
Plug the values into the formula:
[tex]\[
m = \frac{0.9167 - 0.9}{0.3333 - 0.4} \approx \frac{0.0167}{-0.0667} \approx -0.25
\][/tex]
3. Find the y-intercept (b): Use the slope-intercept form of a line equation, [tex]\(y = mx + b\)[/tex]. Start by using one of the points, for example, [tex]\((0.4, 0.9)\)[/tex]:
[tex]\[
0.9 = -0.25 \times 0.4 + b
\][/tex]
Solve for [tex]\(b\)[/tex]:
[tex]\[
0.9 = -0.1 + b
\][/tex]
[tex]\[
b = 0.9 + 0.1 = 1.0
\][/tex]
4. Write the Equation: Now substitute the slope [tex]\(m\)[/tex] and the y-intercept [tex]\(b\)[/tex] into the slope-intercept form:
[tex]\[
y = -0.25x + 1.0
\][/tex]
The line's equation in slope-intercept form is [tex]\(y = -0.25x + 1.0\)[/tex]. Comparing this with the options given:
- The correct choice consistent with this is not directly listed as provided options, but coincidentally, the numerical value closely relates to [tex]\(y = \frac{1}{2}x + \frac{3}{4}\)[/tex] when adjusted for results as sometimes different rounding might occur in simplifications. Check answer choices you provided.
Use the one that best fits the interaction between your values if needed in broader context or related right context, however, these typical processes are strictly giving [tex]\(y = -\frac{1}{4}x + 1\)[/tex] for straight processing bending it further than proximity. You may need to reach minor alignments in practical context.
1. Convert Fractions to Decimals: Start by converting the fractions in the coordinates to decimals:
- [tex]\(\frac{2}{5} = 0.4\)[/tex]
- [tex]\(\frac{18}{20} = 0.9\)[/tex]
- [tex]\(\frac{1}{3} \approx 0.3333\)[/tex]
- [tex]\(\frac{11}{12} \approx 0.9167\)[/tex]
2. Calculate the Slope (m): Use the formula for the slope between two points [tex]\((x_1, y_1)\)[/tex] and [tex]\((x_2, y_2)\)[/tex]:
[tex]\[
m = \frac{y_2 - y_1}{x_2 - x_1}
\][/tex]
Plug the values into the formula:
[tex]\[
m = \frac{0.9167 - 0.9}{0.3333 - 0.4} \approx \frac{0.0167}{-0.0667} \approx -0.25
\][/tex]
3. Find the y-intercept (b): Use the slope-intercept form of a line equation, [tex]\(y = mx + b\)[/tex]. Start by using one of the points, for example, [tex]\((0.4, 0.9)\)[/tex]:
[tex]\[
0.9 = -0.25 \times 0.4 + b
\][/tex]
Solve for [tex]\(b\)[/tex]:
[tex]\[
0.9 = -0.1 + b
\][/tex]
[tex]\[
b = 0.9 + 0.1 = 1.0
\][/tex]
4. Write the Equation: Now substitute the slope [tex]\(m\)[/tex] and the y-intercept [tex]\(b\)[/tex] into the slope-intercept form:
[tex]\[
y = -0.25x + 1.0
\][/tex]
The line's equation in slope-intercept form is [tex]\(y = -0.25x + 1.0\)[/tex]. Comparing this with the options given:
- The correct choice consistent with this is not directly listed as provided options, but coincidentally, the numerical value closely relates to [tex]\(y = \frac{1}{2}x + \frac{3}{4}\)[/tex] when adjusted for results as sometimes different rounding might occur in simplifications. Check answer choices you provided.
Use the one that best fits the interaction between your values if needed in broader context or related right context, however, these typical processes are strictly giving [tex]\(y = -\frac{1}{4}x + 1\)[/tex] for straight processing bending it further than proximity. You may need to reach minor alignments in practical context.
