Sign In
What do parallel lines have in common?
Equation: y=1/5x+37/5
Graph:
When lines are parallel, they have the same slope. y=1/5(x+4) To help us identify the slope of this line, let's first convert it into slope-intercept form, y=mx+ b, where m is the slope and (0, b) is the y-intercept.
x= 3, y= 8
1/b* a = a/b
LHS-3/5=RHS-3/5
a = 5* a/5
Subtract fractions
Rearrange equation
Now that we have the y-intercept, we can conclude that the line given by the following equation is parallel to y= 15(x+4) and passes through (3,8). y=1/5x+ 37/5 Finally, we can verify our answer by graphing both lines on the same coordinate plane. If they are parallel, they will never intersect.
We can see by looking at the graphs of the functions that they are indeed parallel.