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SpyIntel [72]
3 years ago
10

Which of the following pairs of lines are perpendicular? Select all that apply.

Mathematics
1 answer:
nataly862011 [7]3 years ago
4 0

Answer:

y  = \frac{4}{5} x - 8

y = -\frac{5x}{4} + 3

y  = \frac{2}{3} x - 8

y = \frac{-3}{2}x - 8

Step-by-step explanation:

To know the pairs that are perpendicular lines, we need to understand what makes a line perpendicular to another.

Perpendicular lines generally have slopes;

      m and -\frac{1}{m}

So, any of the pairs with a negative inverse value of slope will be perpendicular.

     y  = \frac{4}{5} x - 8         slope = \frac{4}{5}

     y = -\frac{5x}{4} + 3       slope  = -\frac{5}{4}

We see they are negative inverses

     y  = \frac{2}{3} x - 8         slope  = \frac{2}{3}

     y = \frac{-3}{2}x - 8        slope = -\frac{3}{2}

These are also negative inverses.

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