Writing equations of Parallel Lines

What are parallel lines?

• Lines that intersect

• Lines that are the same

• Lines that NEVER intersect

• Lines that are not straight

Tags

CCSS.HSF.IF.A.1

Parallel lines have _________ slopes.

• the same

• different

• opposite reciprocal

• opposite

Tags

CCSS.8.EE.B.5

Which of the following lines are parallel?

• 
• 
• 

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.CO.C.9

CCSS.HSG.GPE.B.5

Which of the following lines are parallel? There is more than 1 answer!

• 
• 
• 

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.CO.C.9

What is the slope of the following line?  $y=-\frac{2}{3}x\ +7$  

•  $7$  

•  $\frac{2}{3}$  

•  $-\frac{2}{3}$  

•  $\frac{3}{2}$  

Tags

CCSS.8.EE.B.5

What would be the slope of a line that is parallel to  $y=3x-6$ ?

•  $-6$  

•  $-3$  

•  $\frac{1}{3}$  

•  $3$  

Tags

CCSS.8.EE.B.5

What is the first step when trying to write an equation of a parallel line?

• Pick out the y-intercept (b)

• Pick out the slope (m)

• Plug in x and y

• Solve for b

Tags

CCSS.HSG.GPE.B.5

When writing an equation of a line that is parallel, what should you do after you find your slope (m)?

• Plug m, x, and y into y = m x + b to solve for b

• Pick out the y-intercept (b) from the equation given

• Nothing, you are done

Tags

CCSS.HSG.GPE.B.5

When writing an equation of a line that is parallel, what should your last step be?

• Solve for b.

• Write your equation using the m and the b that came in the problem at the beginning.

• Write your equation in y = m x + b form using your m and the new b.

• Give up, who knows!

Tags

CCSS.HSG.GPE.B.5

What is the equation of a line that is parallel to y = 3x - 7 and goes through (2, 1) ?

• $y=3\left(2\right)-7$

• $y=3x-7$

• $y=3x+1$

• $y=3x-5$

Tags

CCSS.HSG.GPE.B.5