Quiz 4:1-3

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

• 6

• 5

• y

• -6

What is the equation by looking at this graph?

• y= x + 3

• y= -x + 2

• y= 2x + 2

• y= x + 2

What kind of slope does the graph have?

• Positive

• Negative

• 0

• Undefined

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

• y = -2x - 5

• y = 2x - 5

• y = -2x

• y = -1/2x - 5

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 in slope-intercept form.

• y = -2x + 5

• y = 1/2x + 5

• y = 5x - 2

• y = 3x - 6

For the equation
y + 1 = -3(x - 5),
the line contains the point (5, -1) and has a slope of?

• -1
• 1
• -3
• 5

Write the equation in point-slope form of the line that passes through the given point and has the given slope.
(4, -7); m = -1/4

• y +7 = -1/4(x - 4)
• y - 4 = -1/4(x + 7)
• y+ 7 = 4(x - 4)
• y - 7 = -1/4(x - 4)

Write an equation  
m = 5/4 through (-4, -3)

• y = 5/4x +2
• y = -5/4x + 2
• y = 2x - 5/4
• y = 3/4x + 2

Slopes of parallel lines are...

• opposite reciprocals.
• opposites.
• the same.
• always 7.