Unit 7 review #1-Pre-algebra

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D:{0, 1, 2, -4}
  R:{1, -3, -4}
• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}

What is the range of the following relation:
(9, -2) (4, 3)  ( 8, 10) ( -4, 8)

• -4, 4, 8, 9
• -2, 3, 8, 10
• (9, -2) ( 4, 3)
• (8, 10) (-4, 8)

What type of association does this graph have?

• positive 
• negative
• none
• all of the above

Which of the following lines represents the line of best fit for the scatter plot?

• A
• B
• C
• D

Which scatter plot shows both positive and linear association?

• 
• 
• 
• 

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A
• B
• C
• D

Which equation matches the graph?

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

What is the equation for this graph?

• y= 4/5 x + 4

• y= 5/4 x + 4

• y= 4x -5

• y= 5x + 4

Write a linear equation in slope intercept form of a line with a slope of -3 and y intercept of 0

• y=-3
• y=3x
• y=-3x
• x=-3

Find the slope given the points (3,2) and (4,7).

• 4

• 5

• -5

• 1/5