slope-intercept form practice

Find the equation of the line in slope-intercept form. 

• y = - 1/4x - 3
• y = 1/3x + 3
• y = - 1/4x + 2
• y = 1/3x -3

Jackson started with $800 in his savings account, but has to pay $30 a month for his electricity bill. Write an equation that relates his savings, y, to the amount of months, x.

• y = -30x + 800

• y = 30x - 800

• y = -30x

• y = 12x - 30

At 10:00 pm, there was already 8.6 inches on the ground. If it is to snow 2 inches per hour after, what equation could be used to model the situation after x amount of hours.

• y = 2x + 8.6

• y = 2x - 8.6

• y = -2x + 8.6

• y = 1/2x + 8.6

Write an equation for the table relating x and y in slope-intercept form.

• y = 2x + 2

• y = -3x + 2

• y = 6x + 5

• y = -2x - 2

What is the equation for the table above?

• y = -3x + 20

• y = 3x + 20

• y = -1/3x + 20

• y = 6x - 2

In slope intercept form (y=mx+b) what is the "m"?

• The y-intercept
• The x-intercept
• The slope (rate of change)
• A point

In slope intercept form (y=mx+b) what is the "b"?

• The y-intercept
• The x-intercept
• The slope (rate of change)
• A point

What is the y-intercept for the given graph?

• -5
• 5
• 1
• -1

What is the y-intercept in the equation?

y = (-2/3)x + 8

• -2/3

• 8

• 2/3

• -8

What is the slope of the equation?
y = -3x + 4

• -3
• 4
• -4
• 3