Understanding Graphing Linear Equations

Why is it recommended to choose simple numbers like -1, 0, and 1 when plugging in values for x?

• They are the only numbers that result in positive y-values.

• They are required by all teachers.

• They make calculations easier and quicker.

• They are the only numbers that work in equations.

What is the y-value when x is -1 in the equation y = -5x + 1?

• 5

• 4

• 6

• 7

What is the ordered pair for x = 0 in the equation y = -5x + 1?

• (0, 0)

• (1, 1)

• (0, 1)

• (1, 0)

How do you determine the direction to move on the graph when plotting the point (1, -4)?

• Move left 1 and up 4

• Move right 1 and down 4

• Move right 1 and up 4

• Move left 1 and down 4

Why are arrows used at the ends of the line when graphing the equation?

• To highlight the y-intercept

• To indicate the line is a segment

• To show the line continues infinitely in both directions

• To mark the start and end points