Week 8 - Optional Extension Assignment

Which equation would represent a line drawn to connect the Town Hall and Post Office?

• $y=-\frac{2}{3}x+\frac{28}{3}$

• $y\ =\ -\frac{1}{8}x+\frac{53}{8}$

• $y=\frac{3}{5}x+9$

• $y=\frac{1}{8}x+\frac{59}{3}$

The point (17, -9) is translated to the point (6, 2). Select the description of the translation.

• 9 down, 7 right

• 11 left, 11 up

• 9 right, 11 up

• 11 left, 9 down

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is the value of x?

Tags

CCSS.8.G.A.5

What is the solution of the equation

-14 + 2x + 3 = 4x - 13 - 7x

• $x=-\frac{9}{16}$

• $x=-\frac{2}{5}$

• $x=\frac{2}{5}$

• $x=\frac{9}{16}$

Tim has $20 to buy snacks for 12 people in an office. Each person will get one snack. Tim is buying bags of pretzels that cost $1.50 per bag and bags of crackers that cost $2.00 per bag.

Tim is buying x bags of pretzels and y bags of crackers. Which system of equations can be used to find the value of x and y?

• 
• 
• 
• 

Tags

CCSS.8.EE.C.8C

Tim has $20 to buy snacks for 12 people in an office. Each person will get one snack. Tim is buying bags of pretzels that cost $1.50 per bag and bags of crackers that cost $2.00 per bag.

Tim is buying x bags of pretzels and y bags of crackers. How many bags of pretzels does Tim buy? (hint: use the system of equations from the previous question)

• x = 6

• x = 8

• x = 10

• x = 12

Tags

CCSS.8.EE.C.8C

How many solutions does the system of equations have?

y = -6x - 7

y = -6x - 7

• one solution

• no solution

• infinitely many solutions

Tags

CCSS.8.EE.C.8B

Write the equation of a line in slope-intercept form given the slope and the y-intercept.

slope =  $-\frac{4}{7}$  
y-intercept = 7

•  $y=-\frac{4}{7}x+\ 7$  

•  $y=\frac{4}{7}x+7$  

•  $y=7x-\frac{4}{7}$  

•  $y=-7x+\frac{4}{7}$  

What is the solution to this system of linear equations?

y = x + 3

y = 2

• (-1 , 2)

• (2, -1)

• (5, 2)

• (-5, 2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the value of x?

Tags

CCSS.8.G.A.5