Picking an even number from a jar with papers labeled

Ответ:

robertojr24ov5pel

14.06.2021

$Pair \ of \ lines \ are \ perpendicular, then \ m_1 \times m_2= -1\\$

y = 2x - 5

y = 2x + 3

$m_1 = 2, m_2 = 2 \\m_1 \cdot m_2 = 4$

y = (2/3)x + 1

y = (3/2)x + 1

$m_1 = \frac{2}{3}, m_2= \frac{3}{2} \\\\m_1 \cdot m_2=\frac{2}{3} \times \frac{3}{2} = 1$

y = 3x + 5

y=(-1/3)x - 8

$m_1 = 3, m_2 = \frac{-1}{3} \\\\m_1 \cdot m_2 = 3 \times\frac{-1}{3} = -1$

y= 4x - 5

y= -4x + 2

$m_1 = 4, m_2= -4\\\\m_1 \cdot m_2 = -16$

option C

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