equation forms

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 'b' in this linear equation? y= 5x - 6

• 6

• 5

• y

• -6

Find the slope:
(-4, 3) and (-4, -7)

• 5/4
• -10/8
• Zero
• Undefined

Which equation matches the graph?

• y = 5
• y = -5
• x = -5
• x = 5

• y = 2x + 9

• y = 6x - 3

• y = 2x + 3

• y = 6x + 9

• y=1/2x+5

• y=-1/2x+5

• y=-1/2x-5

• y=1/2x-5

• 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.

Answer explanation

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

Find the slope of the line.

• 1/2
• -1/2
• 2
• -2

Answer explanation

Slope is the rate of change.

Here we can first start at the origin, and then make our way to another point. To get to the other bolded point, we go up 1 and right 2.

up 1 is the rise

------------------------

right 2 is the run

+ 1

------

+2

• Standard Form

• Slope - Intercept Form

• Point - Slope Form

Answer explanation