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Biblioteka

Algebra 2 2-4 Guided Practice: More About Linear Equations

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Posljednje ažuriranje over 3 years ago
32 questions
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Pitanje 1
1.

Video Check: Select all that apply with regards to the video embedded directly above this item.

Pitanje 2
2.

Solve It! A contractor needs to build two straight roads, each passing through point A.

One road must be parallel to Pine Street, and the other road must be perpendicular to Pine Street. Find the coordinates of a second point the parallel road will pass through and the coordinates of a third point the perpendicular road will pass through. Classify the coordinates below appropriately.

  • (60, 60)

  • (50, 40)

  • (10, 70)

  • On the parallel road

  • On the perpendicular road

  • On neither the parallel nor perpendicular road

Pitanje 3
3.

Video Check: Select all that apply with regards to the video embedded directly above this item.

10
Pitanje 4
4.

Take Note: Provide an example of an equation written in point-slope form.

10
Pitanje 5
5.

Take Note: Explain why it is appropriate to find the words "point" and "slope" in the name point-slope form.

10
Pitanje 6
6.

Problem 1 Got It?

A.CED.2
F.IF.9
Pitanje 7
7.

Video Check: Select all that apply with regards to the video embedded directly above this item.

Review: The slope formula helps us to calculate the slope between any two points as follows:

\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

10
Pitanje 8
8.

Take Note: Describe the process of using the slope formula to calculate slope between two given points.

Pitanje 9
9.

Problem 2 Got It? A line passes through (-5, 0) and (0, 7). What is an equation of the line in point-slope form?

Pitanje 10
10.

Problem 2 Got It? Reasoning: What is another equation in point-slope form of the line through the points (-5, 0) and (0, 7)?

Pitanje 11
11.

Video Check: Select all that apply with regards to the video embedded directly above this item.

10
Pitanje 12
12.

Take Note: Provide an example of an equation in standard form.

10
Pitanje 13
13.

Take Note: Since the standard form of an equation should be written with integers as its coefficients and constant, it is often necessary to clear fractions. Recall that this can be accomplished by multiplying every term in the equation by the least common multiple (LCM) of all of the denominators.

Consider the equation:

\frac{2}{3}x+5y=\frac{1}{2}

By what LCM can we multiply every term to clear the fractions and establish an equation that is in standard form? Enter only a number.

Hint: The new equation is

4x+30y=3.

10
Pitanje 14
14.

Problem 3 Got It?

A.CED.2
F.IF.9
Pitanje 15
15.

Video Check: Select all that apply with regards to the video embedded directly above this item.

Pitanje 16
16.

Take Note: Classify each item on the left based on the form of an equation that it represents.

You may need to zoom out to see all of the items. You can also place each item from the left column by selecting it (click it) then selecting (clicking on) the category for it.

  • y-y_{1}=m(x-x_{1})

  • 7x-6y=1

  • Ax+By=C

  • y=mx+b

  • y-2=-3(x-4)

  • y=\frac{2}{3}x-5

  • Slope-Intercept Form

  • Point-Slope Form

  • Standard Form

Pitanje 17
17.

Problem 4 Got It? What are the intercepts of 2x - 4y = 8?

  • (-4, 0)

  • (0, -2)

  • (4, 0)

  • (0, 0)

  • x-intercept

  • y-intercept

Pitanje 18
18.

Problem 4 Got It? Graph the equation 2x - 4y = 8.

  • Kliknite na karticu Grafikon (Grafikon 1, Grafikon 2 i tako dalje) za svaki grafikon koji trebate nacrtati.
  • Kliknite na pozadinu grafikona da biste dodali tačku. Dodajte dvije tačke da biste kreirali grafikon. Prevucite tačku ili unesite x i y koordinate da biste uredili njen položaj. Kliknite na tačku da biste je izbrisali.
  • Nakon što kreirate grafikon, možete označiti kućicu s isprekidanom linijom.
Pitanje 19
19.

Video Check: Select all that apply with regards to the video embedded directly above this item.

Pitanje 20
20.

Problem 5 Got It? The office manager of a small office ordered 140 packs of printer paper. Based on average daily use, she knows that the paper will last about 80 days.

What graph represents this situation? Zoom and pan your graph to establish an appropriate viewing window.

Tip: Zoom out until you can see 140 on the y-axis and 80 on the x-axis.

  • Kliknite na karticu Grafikon (Grafikon 1, Grafikon 2 i tako dalje) za svaki grafikon koji trebate nacrtati.
  • Kliknite na pozadinu grafikona da biste dodali tačku. Dodajte dvije tačke da biste kreirali grafikon. Prevucite tačku ili unesite x i y koordinate da biste uredili njen položaj. Kliknite na tačku da biste je izbrisali.
  • Nakon što kreirate grafikon, možete označiti kućicu s isprekidanom linijom.
Pitanje 21
21.

Problem 5 Got It? The office manager of a small office ordered 140 packs of printer paper. Based on average daily use, she knows that the paper will last about 80 days.

What is the equation of the line in standard form?

Pitanje 22
22.

Problem 5 Got It? The office manager of a small office ordered 140 packs of printer paper. Based on average daily use, she knows that the paper will last about 80 days.

How many packs of printer paper should the manager expect to have after 30 days?

Pitanje 23
23.

Video Check: Select all that apply with regards to the video embedded directly above this item.

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Pitanje 24
24.

Take Note: Describe what you know about the slopes of parallel lines.

5
Pitanje 25
25.

Take Note: What is the slope of a line that is parallel to the line given by the equation y=-4x?

Enter only a number.

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Pitanje 26
26.

Take Note: Define negative reciprocal.

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Pitanje 30
30.

Problem 6 Got It?

A.CED.2
F.IF.9
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Pitanje 31
31.

Problem 6 Got It?

A.CED.2
F.IF.9
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Pitanje 32
32.

🧠 Retrieval Practice:

Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?

Pitanje 27
27.

Take Note: Provide an example pair of two numbers that are negative reciprocals.

Pitanje 28
28.

Take Note: Describe what you know about the slopes of perpendicular lines. You may use the canvas to help illustrate your written description.

Pitanje 29
29.

Take Note: What is the slope of a line that is perpendicular to the line given by the equation y=-4x?

Enter only a number.