Look at this graph : Is this relation a function?
1 answer:
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Answer: Second option.
Step-by-step explanation:
The equation of the line in Slope-Intercept form is:
Where "m" is the slope and "b" is the y-intercept.
It is important to remember the following:
1- The slopes of parallel lines are equal.
2- The slopes of perpendicular lines are negative reciprocal.
Then, given the first equation:
You can identify that:
The second equation is:
Solve for "y":
You can identify that:
Then, since the slopes are negative reciprocal, you can conclude that the lines for the given pair of equations are perpendicular.