211k views
4 votes
Write an equation in standard form for the line that passes through the given points.

(-2-3) (4-7)

2 Answers

5 votes

Final answer:

To write the equation in standard form for the line passing through the given points (-2,-3) and (4,-7), we first find the slope using the formula (y2 - y1) / (x2 - x1). Then we substitute one of the points into the slope-intercept form y = mx + b to find the y-intercept. Finally, we rearrange the terms to obtain the equation 2x + 3y = -13 in standard form.

Step-by-step explanation:

To write an equation in standard form for the line that passes through the points (-2,-3) and (4,-7), we need to find the slope of the line. The slope, denoted as 'm', can be found using the formula: m = (y2 - y1) / (x2 - x1). So, plugging in the given points, we have m = (-7 - (-3)) / (4 - (-2)) = -4 / 6 = -2/3.

Next, we can use the slope-intercept form, y = mx + b, where 'm' is the slope and 'b' is the y-intercept, to find the equation. We can choose either of the given points to substitute for (x, y) in this equation. Let's use the first point (-2,-3): -3 = (-2/3)(-2) + b. Simplifying this equation gives us -3 = 4/3 + b. To solve for 'b', subtract 4/3 from both sides, giving b = -3 - 4/3 = -13/3.

Therefore, the equation in slope-intercept form is y = (-2/3)x - 13/3. To convert this to standard form, we can multiply both sides of the equation by 3 to eliminate the fraction, resulting in 3y = -2x - 13. Finally, rearranging the terms gives us the equation in standard form: 2x + 3y = -13.

User Loler
by
9.4k points
5 votes
I think the answer is -2/21
User Marcos Cassiano
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories