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2 years ago

10

Is y=x^2 a function?

2 answers:

Pie2 years ago

3 0

Answer:

Yes, it is. Functions can only have one output (y) for each input (x). Furthermore, this means each x value will only have one y passing through it. Thus if we plot it on a graph and it passes through a horizontal line more than once, it is not a function. This is called the vertical line test.

xeze [42]2 years ago

3 0

Yes id it a funtion hope i help can i be brainlites

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Write the equation of the line in slope intercept form that passes through the point (-3, 5) and is parallel to y= - 2/3x

Solnce55 [7]

Answer:

The equation of the line in slope intercept form that passes through the point (-3, 5) and is parallel to y= - 2/3x is $\mathbf{y=-\frac{2}{3}x+3 }$

Step-by-step explanation:

We need to Write the equation of the line in slope intercept form that passes through the point (-3, 5) and is parallel to y= - 2/3x

The equation in slope-intercept form is: $y=mx+b$ where m is slope and b is y-intercept.

Finding Slope:

The both equations given are parallel. So, they have same slope.

Slope of given equation y= - 2/3x is m = -2/3

This equation is in slope-intercept form, comparing with general equation $y=mx+b$ where m is slope , we get the value of m= -2/3

So, slope of required line is: m = -2/3

Finding y-intercept

Using slope m = -2/3 and point (-3,5) we can find y-intercept

$y=mx+b\\5=-\frac{2}{3}(-3)+b\\5=2+b\\ b=5-2\\b=3$

So, we get b = 3

Now, the equation of required line:

having slope m = -2/3 and y-intercept b =3

$y=mx+b\\y=-\frac{2}{3}x+3$

The equation of the line in slope intercept form that passes through the point (-3, 5) and is parallel to y= - 2/3x is $\mathbf{y=-\frac{2}{3}x+3 }$

5 0

2 years ago

Read 2 more answers

Four posters cost $19.20. How many posters can you buy for $48.00?

stich3 [128]

You can buy 8 posters with 48.00 19.20x2=38.40 the leftover change isn’t enough to buy more

8 0

2 years ago

Evaluate 2^2⋅4^3=<br><br>Your answer<br><br><br>

ivanzaharov [21]

Answer:

256

Step-by-step explanation:

First, handle the exponent:

2²=4 (2*2=4) and 4³=64 (4*4=16*4=64)

Now multiply those two outcomes:

4*64=<u>256</u>

This equation is also known as 4⁴

6 0

2 years ago

xxMikexx [17]

Answer:

A = 1.5 π in² ≈ 4.7 in²

Step-by-step explanation:

the area (A) of the sector is calculated as

A = area of circle × fraction of circle

= πr² × $\frac{\frac{\pi }{3} }{2\pi }$

= π × 3² × $\frac{1}{6}$

= 9π × $\frac{1}{6}$

= 1.5π in²

≈ 4.7 in² ( to the nearest tenth )

7 0

2 years ago

Let’s explore a quotient raised to an exponent

irakobra [83]

The answer is 216/y^3

8 0

2 years ago

Read 2 more answers