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vichka [17]
2 years ago
12

6. y = -3x + 2 y = -3x - 7

Mathematics
2 answers:
oee [108]2 years ago
8 0

Answer:

No Solution

Step-by-step explanation:

When the simultaneous equation is solved, we get an answer of 0 = -9. This statement is false. So there are no solutions.

aalyn [17]2 years ago
6 0
  • y=-3x+2---(1)
  • y=-3x+7--(2)

Subtracting both equations

\\ \sf\longmapsto y-y+-3x+3x-5=0

\\ \sf\longmapsto -5=0

No solution

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The answer is d.42 because since the denominator(8) is being multiply by 6 to get 48, you should multiply 7 by 6 too to get the answer 42. And so the answer is 42/48.
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13. Suppose a car dealer sells 2 sport-utility vehicles. How many mid-sized cars must be sold to earn at least S3500?
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incomplete information.What is the price of 1 car ?

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What is (6-6)+7x7+4= ?
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<h2>Anser</h2>

53

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The following scatter plot shows the number of page views for a popular website and how many people signed up to receive emails
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Answer:

See Explanation.

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
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  3. Exponents
  4. Multiplication
  5. Division
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Equality Properties

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<u>Algebra I</u>

Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Slope-Intercept Form: y = mx + b

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Linear Regression

Step-by-step explanation:

We can draw any best line of fit, as long as it is <em>reasonable</em> around the points that are given.

We can just take 2 points and use slope formula and Slope-Intercept Form to find the equation for the best line of fit.

Using Linear Regression, we can determine the <em>true</em> best line of fit using graphing utilities.

<u>Finding the best line of fit</u>

<em>Define 2 points</em>

Point (21600, 205)

Point (27000, 290)

<em>Find slope m</em>

  1. Substitute in point [SF]:                    \displaystyle m=\frac{290-205}{27000-21600}
  2. [Fraction] Subtract:                           \displaystyle m=\frac{85}{5400}
  3. [Fraction] Simplify:                            \displaystyle m=\frac{17}{1080}

<em>Find equation</em>

  1. Define equation [SIF]:                        \displaystyle y = \frac{17}{1080}x + b
  2. Substitute in point:                            \displaystyle 290 = \frac{17}{1080}(27000) + b
  3. Multiply:                                             \displaystyle 290 = 425 + b
  4. Isolate y-intercept <em>b</em>:                         \displaystyle -135 = b
  5. Rewrite:                                             \displaystyle b = -135
  6. Redefine equation:                           \displaystyle y = \frac{17}{1080}x - 135

Slope-Intercept Form tells us that our slope <em>m</em> = \displaystyle \frac{17}{1080} and our y-intercept \displaystyle b = -135.

Setting this as function f(x), we can see from the graph that it is extremely accurate (Blue line).

<u>Using Linear Regression</u>

Depending on the graphing calc you have, the steps may be different.

Using a graphing calc, we can use statistics and determine the <em>best</em> best line of fit.

When we determine the values, we should see that our equation would be g(x) (Green Line).

<em>Credit to Lauren for collabing w/ me in graphing.</em>

6 0
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PLEASE help! Functions problem!
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Answer:

C

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