Exploring Graphs of Linear Equations

The video tutorial covers graphing linear equations by plotting points, using the equation y = 2x + 7 as an example. It then explores a currency conversion problem, demonstrating how to graph the function and solve for specific values. Finally, the video explains how to read a conversion graph to convert between kilograms and pounds, providing practical examples throughout.

What is the most basic way to graph linear equations as mentioned in the video?

• Using a computer software

• Plotting points and connecting them

• Using a graphing calculator

• Drawing freehand

What is the y-value when x is -2 for the equation y = 2x + 7?

• 5

• 7

• 3

• 1

How many points are necessary to plot a straight line?

• Three

• Two

• One

• Four

What is the y-value when x is 8 for the equation y = 2x + 7?

• 21

• 23

• 15

• 19

What is the service fee for converting dollars to Euros at the airport?

• $7

• $5

• $3

• $10

How many Euros do you get if you give $50 at the airport?

• EUR 31.5

• EUR 35

• EUR 28

• EUR 40

What is the Euro amount received if you give $25?

• EUR 14

• EUR 12

• EUR 16

• EUR 10

What is the Euro amount received if you give $55?

• EUR 30

• EUR 35

• EUR 40

• EUR 45

How many pounds is 4 kilograms approximately?

• 9 pounds

• 8 pounds

• 10 pounds

• 11 pounds

How many kilograms is 12 pounds approximately?

• 4.5 kg

• 5 kg

• 6 kg

• 5.5 kg