
Slope and Writing Linear Equations
Presentation
•
Mathematics
•
8th - 9th Grade
•
Hard
James Gonzalez
FREE Resource
13 Slides • 19 Questions
1
5. Writing Linear Equations in Slope-Intercept Form
Review how to write a linear equation in slope-intercept form given different conditions.
Standards: NG.8.F.4
By G. LaHood
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4
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Multiple Choice
Write the equation of the line with a slope of -5/4 and a y-intercept of 2.
y = -1/4x + 2
y = 2x - 5/4
y = 1/4x + 2
y = -5/4x + 2
7
Multiple Choice
What does 'b" represent in y=mx+b
y-intercept
banana
nothing
slope
8
Multiple Choice
How would you write the equation with the y-intercept of -3 and slope of 2/3?
y=3/2x+3
y=2/3-3
y=2/3x-3
y=2/3x+3
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Writing Equations Type #2
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Multiple Choice
Speedy Boat Rental charges a $15 deposit fee plus $2 for each hour of use to rent a paddle boat. Write an equation for y, the total cost, to rent the boat for x hours.
x = 2y + 15
y = 15x + 2
x = 15y + 2
y = 2x + 15
11
Multiple Choice
Monica was taking a bus trip to see her aunt. For her to ride 50 miles it cost her $40. For her to ride 250 miles the bus trip would cost her $100. Find the rate of change in dollars per mile. Write an equation in slope-intercept form to model this situation.
y = 3/10x + 40
y = 2.5x + 25
y = 3/10x + 30
y = 3/10x + 25
12
Multiple Choice
Which of the following situations could be descried by the equation y= -25x + 120
There are 120 people in the football stadium, and 25 more are entering each hour.
A plumber charges $25 for a house call and $120 per hour.
A teacher has 120 students. Her third period has 25 students
There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute
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Writing Equations # 3
14
Multiple Choice
15
Multiple Choice
What is the equation of the line?
y = 3
x = 3
y = 3x
y = 3x + 3
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Multiple Choice
17
Writing Equations # 4
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Multiple Choice
Which equation matches the table?
y = x + 5
y = 5x
y = x - 5
x = y - 5
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Multiple Choice
Which equation matches the table?
y = 3x + 9
y = x + 9
y = x + 3
y = 12x - 3
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Writing Equations Type #5
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Multiple Choice
Write the equation of the line that passes through the point (4, -2) and has a slope of −21
y=−21x+3
y=−21x
y=−21x+4
y=−21x−4
22
Multiple Choice
Write an equation in slope intercept form containing the following:
Slope = 4
Point (-2, 1)
y = 4x +9
y=4x-7
y=4x+7
y=4x-9
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Multiple Choice
Write an equation in slope intercept form containing the following:
Write equation of the line containing (4,2) and (3,5)
y = -3x + 14
y = 3x + - 4
y = -3x - 4
y = -3x + 10
26
Multiple Choice
Write an equation of the line in slope-intercept form that passes through the points (5, −2) and (0,−2) .
y=−2x+5
y=5
y=5x−2
y=−2
27
Multiple Choice
Write an equation in slope intercept form containing the following:
Goes through points (5,6) and (2, 15)
y = 3x + 21
y = 3x - 9
y = -3x + 21
y = -3x - 9
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30
Multiple Choice
When converting the equation
2x + 4y = 8
into slope-intercept form, the first step to solve for y would be to ____________.
subtract 2x from each side
subtract 4y from each side
add 2x to each side
add 4y to each side
31
Multiple Choice
After subtracting 2x from each side, the resulting equation is shown below:
2x + 4y = 8
4y = -2x + 8
The final step to solve for y would be to ____________.
divide each term by 4
divide each term by -4
add 4 to each side
subtract 4 from each side
32
Multiple Choice
Convert the equation to slope intercept form.
-3x - 2y = 6
y = 3x - 2
y = -3/2x - 3
5. Writing Linear Equations in Slope-Intercept Form
Review how to write a linear equation in slope-intercept form given different conditions.
Standards: NG.8.F.4
By G. LaHood
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