Question

Help with finding the angle between two lines

Answer 1

Find the angle between the following two lines:



x − y = 0

3x − 2y = negative-1



(round your answer to the nearest tenth of a degree).

Answer 2

y=x

y=3/2x+.5

Answer 3

3/2-1= 1/2

3/2(1)+1=5/2

Answer 4

\[\tan^{-1}(\frac{ 1/2 }{5/2 })\]

Answer 5

is negative-1 means 1?

Answer 6

or did you mean to write one negative?

Answer 7

No copy and paste didn't work well lool

Answer 8

3x-2y=-1

Answer 9

\[y=x \text{ has slope } m_1=1 \\ 3x-2y=-1 \rightarrow -2y=-3x-1 \rightarrow y=\frac{3}{2}x+\frac{1}{2} \text{ has slope } m_2=\frac{3}{2} \\ m_2-m_1=\frac{3}{2}-1=\frac{1}{2} \\ 1+m_2 \cdot m_1 =1+\frac{3}{2} \cdot 1=\frac{5}{2}\]
so yes your setup is right

Answer 10

yay I got 11.3 degrees

Answer 11

sounds great

Answer 12

Thank you for checking my work ^_^ finally am getting it down with no errors