CCSS.Math.Content.8.F.B.4

Consider the equation:
y=-x+4
Identify the slope and y-intercept.

• m=4, b=-x
• m=-x, b=4
• m=1, b=4
• m=-1, b=4

Tags

CCSS.Math.Content.8.F.B.4

A music club membership costs $15 to start and $8 per cd. Write an equation.

• C = 15 + 8
• C = 15x +8
• C = 8x + 15
• none of these

Tags

CCSS.Math.Content.8.F.B.4

Shelia collected data on ticket sales for the homecoming dance.  If she plots the data on the scatterplot shown above, which equation best models the table?

• y = 4.22x + 20.98
• y = 4.22x - 20.98
• y = -4.22x + 20.98
• y = -4.22x - 20.98

Tags

CCSS.Math.Content.8.F.B.4

What is the recursive rule for the sequence:
-27, -17, -7, 3, 13, ...

• a_n = -27(10)^n-1
• a_n = -27 + 10(n-1)
• a_n = -6⋅a_(n-1)
  a₁ = -27
  
• a_n = a_(n-1) - 6
  a₁ = -27

Tags

CCSS.Math.Content.8.F.B.4

Write an equation  
m = 5 through (-1, -3)

• y = 5x + 2
• y = -5x - 5
• y = -5x + 2
• y = 2x - 5

Tags

CCSS.Math.Content.8.F.B.4

Write an equation  
m = 5/4 through         (-4, -3)

• y = 5/4x +2
• y = -5/4x + 2
• y = 2x - 5/4
• y = 3/4x + 2

Tags

CCSS.Math.Content.8.F.B.4

Find the equation of the line that passes through the points:
(-4, -2) and (-3, 5)

• y = ¹/₇ x + 26
• y = 7x + 26
• y = -7x + 26
• y = -7x - 26

Tags

CCSS.Math.Content.8.F.B.4

Who has the greater rate of change?

• Tyler has the greater rate of change with 2/3
• Aubri has the greater rate of change with 3/2
• Tyler has the greater rate of change with 3/2
• They have the same rate of change.

Tags

CCSS.Math.Content.8.F.B.4

Find the slope from the table.

• -4
• 1
• 4
• -2

Tags

CCSS.Math.Content.8.F.B.4

Which transformation will occur if f(x) = x is replaced with 2f(x)?

• Vertical stretch by a factor of 2

• Vertical compression by a factor of 1/2

• Vertical translation up by 2 units.

• Horizontal compression by a factor of 1/2

Tags

CCSS.Math.Content.8.F.B.4