Slope Intercept Form

What is the equation of a line with a slope of 4 and a y-intercept of 2?

• y = -4x + 2

• y = -2x + 4

• y = 4x + 2

• y = 2x + 4

What is the equation of a line when m = -3 and b = 5?

• y = -3x + 5

• y = -3x - 5

• y = 5x + 3

• y = -5x - 3

What is the equation by looking at this graph?

• y= x + 3

• y= -x + 2

• y= 2x + 2

• y= x + 2

Write the equation for the line in slope-intercept form.

• y= -1x+3
• y= 4x+3
• y=1/4x+3
• y= -4x+3

Write the equation of the line.

• y= -1x-3
• y= -3x-1
• y=-1/3x-1
• y= -3x-3

• slope
• y-intercept
• linear
• x-intercept

Answer explanation

In this form, called slope-intercept form, the coefficient of x, which is the value in front of x, is called the slope.

Slope is the rate of change for a linear function. It's the rise over run, or the change of y-values over the change of x-values.

• x-intercept

• y-intercept

• linear

• slope

Answer explanation

In this form, called slope-intercept form, the constant, which is the value with no variable, represents the y-intercept, which is where the linear function intersects the y-axis.

The y-intercept is the ordered pair (0, b).

• 2
• 3
• 5
• 2x 

Answer explanation

Slope is x's coefficient, which means we take only the value in front of x to be the slope.

Answer explanation

The y-intercept is the constant when the linear function is in slope-intercept form.

• 
• 
• 
• 

Answer explanation

To graph a line, start with the y-intercept and then use the slope to create the line.

Here the y-intercept is (0, 4). And the slope is -2/3, which takes us down 2 then right 3 (or up 2 then left 3). We can check to see if we used slope correctly depending on how the line reads. Since the slope is negative, our line should be decreasing.