3 years ago

What is the domain of f(x) = 3x - 2?

Mathematics

1 answer:

RideAnS [48]3 years ago

6 0

Answer:

{x\x is a real number}

Step-by-step explanation:

I think that is.

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Rewrite the quadratic function in vertex form.<br> Y=2x^2+4x-1

Fantom [35]

Answer:

$\large\boxed{y=2(x+1)^2-3}$

Step-by-step explanation:

The vertex form of an equation of a parabola:

$y=a(x-h)^2+k$

(h, k) - vertex

We have

$y=2x^2+4x-1=2\left(x^2+2x-\dfrac{1}{2}\right)$

We must use the formula: $(a+b)^2=a^2+2ab+b^2\qquad(*)$

$2\left(x^2+2(x)(1)-\dfrac{1}{2}\right)=2\bigg(\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1^2-\dfrac{1}{2}\bigg)\\\\=2\left((x+1)^2-1-\dfrac{1}{2}\right)=2\left((x+1)^2-\dfrac{3}{2}\right)$

Use the distributive formula a(b + c) = ab + ac

$2(x+1)^2+2\left(-\dfrac{3}{2}\right)=2(x+1)^2-3$

5 0

3 years ago

PLEASE HELPPPPPP!!!!

lord [1]

Answer:

So I am not sure my answers are correct but I hope they help:

A. y = 6x+14

B. 6 people

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3 years ago

How do you do this, I don’t understand it

Otrada [13]

For the first line start at -1 and from there go up to and to the right three
for the second line on nuber one start at 4 and down 1 and to the left 1

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Brainliest! Will give!Felicia had $80 when she went to a music store that charges $18 for each CD. She needs to have no less tha

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How many pounds ina kilogram

HACTEHA [7]

Hey there!

There are 2.20462 pounds in a kilogram