Slope-Intercept Form - Linear Relations

Which letter variable represents the "slope" in slope-intercept form of a linear equation?

• m

• x

• y

• b

Look at the graph and equation shown? What is the y-intercept?

• 5

• 2

• 3

• 7

The y-intercept in this table is NOT 7 because...

• the y-intercept should have an x value of 0.

• the y-intercept is actually 1.

• the y-intercept is actually 9.

• the y-intercept is always the same as the slope, and the slope of this table is 2.

Which number is the y-intercept of this table?

• -1

• 0

• -2

• -7

Which equation below is another correct way to write the equation shown?

• y = 6 + 4x

• y = 6x + 4

• y = 6 + 4

• y = 10x

What is the slope and y-intercept of the table shown?

• slope = 8

  y-intercept = 3

• slope = 3

  y-intercept = 8

• slope = 4

  y-intercept = 3

• slope = 3

  y-intercept = 4

What is the y-intercept of this graph?

• 4

• 2

• -4

• -2

Which equation best represents the slope and y-intercept of this graph?

• y = 2x + 4

• y = 2x

• y = 4

• y = 0.5x + 4

Which description below best represents the meaning of a "y-intercept" ?

• The point where a line crosses or touches the y-axis, like a starting point or constant amount, when x = 0

• The point where a line crosses or touches the x-axis, like a ending point

• The rate or steepness of a line, the number in the "m" position in y=mx+b

• It's always the first point you see on a graph or a table, regardless of where it's located.

What is the slope of the line graphed?

• 1/4 or 0.25

• 4

• 2/3 or 0.666

• 6/4 or 1.5