Step-3

Title: Find the equation of the line passes through the points

Grade: 9-a Lesson: S2-L5

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step Type Explanation Answer

1

Problem

Find the equation of the line passes through the points:
\$ (-4,-3) & (-6,-8) \$

2

Step

Consider given points as (x_1,y_1) and

\$(x_2,y_2)\$

3

Step

equating the terms

\$ x_1=-4 , y_1=-3 , x_2=-6 & y_2=-8 \$

4

Formula:

Equation of line passing through two points is

\$(y - y_1) = (y_2 - y_1) / (x_2 - x_1)(x - x_1)\$

5

Step

substuting the values

\$ (y -(-3)) = (-8 -(-3)) / (-6 -(-4))(x -(-4)) \$

6

Step

Simplifying the equation

\$ (y + 3) = (-8 + 3) / (-6 + 4)(x + 4) \$

7

Step

simplyfying the equation

\$ (y + 3) = (-5) / (-2)(x + 4) \$

8

Step

simplyfying the equation

\$ -2(y + 3) = -5(x + 4) \$

9

Step

by simplyfying

\$ -2y - 6 = -5x - 20 \$

10

Step

after simplyfying

\$ 5x - 2y - 6 + 20 = 0 \$

11

Step

after simplyfying

\$ 5x - 2y + 14 = 0 \$

12

Answer

C


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