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3 years ago

Graphing a line given it’s equation in standard form

Mathematics

1 answer:

S_A_V [24]3 years ago

4 0

You'd first change the equation to slope-intercept form.

For example:

-2x + y = 6

You'd add 2x to both sides -

-2x + y + 2x = 6 + 2x

y = 2x + 6

So you'd graph y = 2x + 6

___

Hope this helped!

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Triangle DEF is a right triangle. If FE=5 and DF=13, find DE.

Nadya [2.5K]

Answer:

Step-by-step explanation:

I am amusing you are looking for the hypotenuse since this is middle school.

If you have the legs and are looking for the hypotenuse you use the Pythagorean Theorem $a^{2} + b^{2} = c^{2}$

The legs are a and b, and the hypotenuse is c

The work would look like this

$13^{2} + 5^{2} = c^{2} \\169+25= c^{2} \\194= c^{2} \\\sqrt{194} = \sqrt{c^{2} } \\13.9283883... = c$

extra notes

I rounded to 13
If you didn;t know you cancles exponents with roots

so the $c^{2}$ is cancled by aka $\sqrt{c}$

Hope this helped :)

4 0

3 years ago

What is (18-26)^3 can oneone help me get 5 more brainlyist and 400 points

Phoenix [80]

Answer: -512

Step-by-step explanation:

(18-26) = -8

(-8)^3 = (-8)*(-8)*(-8) = -512

3 0

3 years ago

Jessica has thirty-one books in her library. She bought several books at a

Shtirlitz [24]

Answer: She bought 68 books.

Step-by-step explanation:

Subtract 31 from 99 to find the difference! The difference tells us how many books she bought at the yard sale.

8 0

3 years ago

The distance from Earth to the moon about 224 miles. The distance from earth to neptune is about 227 miles. which distance is th

Whitepunk [10]

The distance from earth to Neptune is greater. And it’s 1.0133 times greater. (I think)

3 0

3 years ago

Find the smallest integer n for an O(xn) estimate of order of the function f(x)

alexdok [17]

Answer with explanation:

$f(x)=\frac{(x^3+x^2+5)(x^4-3x^2)}{(2x^2+2x-3)(4x^2+7)}\\\\f(x)=\frac{x^3\times (x^4-3x^2)+x^2 \times (x^4-3x^2)+5 \times (x^4-3x^2)}{2x^2\times (4x^2+7)+2x(4x^2+7)-3\times (4x^2+7)}\\\\f(x)=\frac{x^7-3x^5+x^6-3x^4+5x^4-15x^2}{8x^4+14x^2+8x^3+14 x-12x^2-21}\\\\f(x)=\frac{x^7+x^6-3x^5+2x^4-15x^2}{8x^4+8x^3+2x^2+14 x-21}$

The largest degree of numerator is 7 , while the largest degree of denominator is 4.So, as we know

$\frac{x^a}{x^b}=x^{a-b}\\\\\frac{x^7}{x^4}=x^{7-4}\\\\=x^3$

→So, order of the function is the highest degree in the function raised to power.Highest degree is 3,when you will reduce the function in Expression form.

So, Degree=3

Order=1

6 0

3 years ago