Lectures - 5.1 Review of Equations and Graphs of Lines

Quiz 5.1 #1 - Finding the slope of a line

What’s the slope of the line that goes through the points (2,3) and (4,1)?

  • A. 1
  • B. -1
  • C. 0

Quiz 5.1 #2 - Using y=mx+b to find slope of a line

What is the slope of the line with equation 4x+2y=10?

  • A. -1
  • B. 2
  • C. -2

Quiz 5.1 #3 - Using slope formula to find the equation of a line

What’s the equation of the line through the points (-3,-1) and (1,3)?

  • A. y=x+2
  • B. y=x-2
  • C. y=-x+2

Quiz 5.1 #4 - Finding the Y intercept of a line

What is the y intercept of the line going through points (2,2) and (4,6)?

  • A. -2
  • B. 2
  • C. 6

Quiz 5.1 #5 - Linear equation word problem

Salesman A gets a $30,000 salary, and $100 commission per sale.
Salesman B gets a $40,000 salary, and $50 commission per sale.
They both made 150 sales.
Who got paid more?

  • A. Salesman A
  • B. Salesman B
  • C. Same pay for both