Question

If two lines have slopes of -2/9 and 9/2 are they perpendicular?​

Answer 1

Answer:

$\huge\boxed{\mathrm{Yes.}}$

Step-by-step explanation:

If the two lines are perpendicular, Multiplying their slopes must give the result of -1.

So, Let's Multiply these slopes.

=> $\sf -\frac{2}{9} * \frac{9}{2}$

=> -1

Since, the result of multiplying these slopes give -1, So, the two lines are perpendicular.