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sashaice [31]
2 years ago
7

Quick algebra 1 assignment for 50 points!

Mathematics
1 answer:
PtichkaEL [24]2 years ago
4 0

See below for the demonstration of (e) graphing a line using x- and y-intercepts

<h3>The graphing method to demonstrate</h3>

To solve this question, we make demonstrate (e) graphing a line using x- and y-intercepts

<h3>The learning goals</h3>

At the end of this exercise, you should be able to graph a line using x- and y-intercepts

<h3>A brief overview</h3>

A linear equation is represented as:

Ax + By = C

Where:

  • y-intercept = C/B
  • x-intercept = C/A

This means that we plot the points (0,C/B) and (C/A, 0) on a graph and then connect the points using a straight line.

Once this is done, the line has been graphed.

For instance, a line parallel to 3x + 8y = 16 will have a slope of -3/8

<h3>An original problem to solve</h3>

Plot the graph of the following equation using the intercepts

2x + 4y = 10

We have:

2x + 4y = 10

Set x = 0 to determine the y-intercept

4y = 10

Divide by 4

y = 2.5

Set x = 0 to determine the x-intercept

2x = 10

Divide by 2

x = 5

So, we have:

(5, 0) and (0, 2.5)

Plot the above points and connect the points (see attachment for graph)

<h3>An original problem to solve by another student</h3>

Plot the graph of the following equation using the intercepts

3x + 6y = 18

We have:

3x + 6y = 18

Set x = 0 to determine the y-intercept

6y = 18

Divide by 6

y = 3

Set x = 0 to determine the x-intercept

3x = 18

Divide by 3

x = 6

So, we have:

(6, 0) and (0, 3)

Plot the above points and connect the points (see attachment for graph)

Read more about linear equations at:

brainly.com/question/14323743

#SPJ1

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3 years ago
Why equals 3/4 X -12 and why equals negative 4X - 31
Helga [31]

Answer:

  (x, y) = (-4, -15)

Step-by-step explanation:

Perhaps you want the solution to ...

  y = 3/4x -12

  y = -4x -31

Equating the two expressions for y gives ...

  3/4x -12 = -4x -31

  3/4x = -4x -19 . . . . . add 12

  3x = -16x -76 . . . . . multiply by 4

  19x = -76 . . . . . . . . . add 16x

  x = -76/19 = -4 . . . . divide by 19

  y = (3/4)(-4) -12 = -15 . . . . use the first equation to find y

The solution to this system of equations is ...

  (x, y) = (-4, -15)

8 0
4 years ago
Dedra said that 3x + 5 and 18 + x are equivalent expressions because you can replace the x in both equations with a 4. Tomas sai
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B

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On a six-day vacation, the forecast is a 30% chance of rain every day. What’s the probability that it rains every day? Enter a f
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The probability that it rains everyday is 0.000729

Forecast for rain = 30%

Since it's a 6 days vacation, the probability that it rains every day will be:

= 30% × 30% × 30% × 30% × 30% × 30%

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= 0.000729

Therefore, the probability is 0.000729

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