3 years ago

What is the slope of a line of best fit if its equation is y = −2x + 3?

Mathematics

2 answers:

serg [7]3 years ago

8 0

-2. or otherwise put as -2/1

kiruha [24]3 years ago

4 0

Y = mx + b
m represents slope of the line.
Looking at the equation, -2 best represents m.

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Solve 2x2 − 4x − 5 = 0 by completing the square.

arsen [322]

For this case we have the following polynomial:
$2x ^ 2 - 4x - 5 = 0
$
Rewriting we have:
$2x ^ 2 - 4x = 5

x ^ 2 - 2x = 5/2$
Then, completing squares we have:
$x ^ 2 - 2x + (-2/2) ^ 2 = 5/2 + (-2/2) ^ 2
$
Rewriting:
$x ^ 2 - 2x + (-1) ^ 2 = 5/2 + (-1) ^ 2

x ^ 2 - 2x + 1 = 5/2 + 1

(x-1) ^ 2 = 7/2$
$x-1 = +/- \sqrt{7/2} x = 1 +/- \sqrt{7/2}$
Then, the solutions are:
$x1 = 1 + \sqrt{7/2} x2 = 1 - \sqrt{7/2}$
Answer:
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4 years ago

Which polynomial represents the difference below?

Alja [10]

Answer:

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Step-by-step explanation:

2 $x^{2}$ + 7<em>x + 6 - (3</em> $x^{2}$ - x)

2 $x^{2}$ + 7x + 6 - 3 $x^{2}$ + x (Distributed the negative to terms inside parentheses)

- $x^{2}$ + 8x +6 (Combine like terms)

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3 years ago

Please help me with this homework

fiasKO [112]

Answer:

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Explain to me in words how you would find the slope of this line please

Zepler [3.9K]

Start at the first point which in this case is (-1,-4). then go up 3 (since thats where the next point is) and over to the right 1 (since thats where the point is lol). since the line is positive, then the answer is 3/1 or 3.

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Read 2 more answers

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Juli2301 [7.4K]

Answer:

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3+0.66=3.66

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1 year ago