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