How to find out if lines are perpendicular

Practice Questions

High School Math › How to find out if lines are perpendicular

Questions

3

1

Which of the following lines is perpendicular to ?

2

Which of the following are perpendicular to the line with the formula $y = -\frac{1}{3}X + 3$ ?

I.

II. $y = \frac{1}{3}X + 3$

III. $y = \frac{4.5}{1.5}X -3$

3

Which of the following lines will be perpendicular to ?

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