Examples
y=6xy=6x , y=x+3y=x+3
Step 1
Step 1.1
The slope-intercept form is y=mx+by=mx+b, where mm is the slope and bb is the y-intercept.
y=mx+by=mx+b
Step 1.2
Using the slope-intercept form, the slope is 66.
m1=6m1=6
m1=6m1=6
Step 2
Step 2.1
The slope-intercept form is y=mx+by=mx+b, where mm is the slope and bb is the y-intercept.
y=mx+by=mx+b
Step 2.2
Using the slope-intercept form, the slope is 11.
m2=1m2=1
m2=1m2=1
Step 3
Set up the system of equations to find any points of intersection.
y=6x,y=x+3y=6x,y=x+3
Step 4
Step 4.1
Eliminate the equal sides of each equation and combine.
6x=x+36x=x+3
Step 4.2
Solve 6x=x+36x=x+3 for xx.
Step 4.2.1
Move all terms containing xx to the left side of the equation.
Step 4.2.1.1
Subtract xx from both sides of the equation.
6x-x=36x−x=3
Step 4.2.1.2
Subtract xx from 6x6x.
5x=35x=3
5x=35x=3
Step 4.2.2
Divide each term in 5x=35x=3 by 55 and simplify.
Step 4.2.2.1
Divide each term in 5x=35x=3 by 55.
5x5=355x5=35
Step 4.2.2.2
Simplify the left side.
Step 4.2.2.2.1
Cancel the common factor of 55.
Step 4.2.2.2.1.1
Cancel the common factor.
5x5=355x5=35
Step 4.2.2.2.1.2
Divide xx by 11.
x=35x=35
x=35x=35
x=35x=35
x=35x=35
x=35x=35
Step 4.3
Evaluate yy when x=35x=35.
Step 4.3.1
Substitute 3535 for xx.
y=(35)+3y=(35)+3
Step 4.3.2
Substitute 3535 for xx in y=(35)+3y=(35)+3 and solve for yy.
Step 4.3.2.1
Remove parentheses.
y=35+3y=35+3
Step 4.3.2.2
Remove parentheses.
y=(35)+3y=(35)+3
Step 4.3.2.3
Simplify (35)+3(35)+3.
Step 4.3.2.3.1
To write 33 as a fraction with a common denominator, multiply by 5555.
y=35+3⋅55y=35+3⋅55
Step 4.3.2.3.2
Combine 33 and 5555.
y=35+3⋅55y=35+3⋅55
Step 4.3.2.3.3
Combine the numerators over the common denominator.
y=3+3⋅55y=3+3⋅55
Step 4.3.2.3.4
Simplify the numerator.
Step 4.3.2.3.4.1
Multiply 33 by 55.
y=3+155y=3+155
Step 4.3.2.3.4.2
Add 33 and 1515.
y=185y=185
y=185y=185
y=185y=185
y=185y=185
y=185y=185
Step 4.4
The solution to the system is the complete set of ordered pairs that are valid solutions.
(35,185)(35,185)
(35,185)(35,185)
Step 5
Since the slopes are different, the lines will have exactly one intersection point.
m1=6m1=6
m2=1m2=1
(35,185)(35,185)
Step 6