The problem asks us to solve the following system of linear equations by graphing: $3x - 5y = 15$ $6x + y = -3$

AlgebraLinear EquationsSystems of EquationsSlope-intercept formGraphing
2025/3/17

1. Problem Description

The problem asks us to solve the following system of linear equations by graphing:
3x5y=153x - 5y = 15
6x+y=36x + y = -3

2. Solution Steps

First, we need to rewrite each equation in slope-intercept form (y=mx+by = mx + b), where mm is the slope and bb is the y-intercept.
Equation 1: 3x5y=153x - 5y = 15
Subtract 3x3x from both sides:
5y=3x+15-5y = -3x + 15
Divide both sides by 5-5:
y=3x5+155y = \frac{-3x}{-5} + \frac{15}{-5}
y=35x3y = \frac{3}{5}x - 3
Equation 2: 6x+y=36x + y = -3
Subtract 6x6x from both sides:
y=6x3y = -6x - 3
Now we have both equations in slope-intercept form:
y=35x3y = \frac{3}{5}x - 3
y=6x3y = -6x - 3
From equation 1 (y=35x3y = \frac{3}{5}x - 3), the slope is 35\frac{3}{5} and the y-intercept is 3-3.
From equation 2 (y=6x3y = -6x - 3), the slope is 6-6 and the y-intercept is 3-3.
Since both equations have the same y-intercept (3-3), the lines intersect at the point where x=0x=0 and y=3y=-3.
Therefore, the solution to the system of equations is (0,3)(0, -3).

3. Final Answer

(0,3)(0, -3)

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