Is y=x^2 a function?

Mathematics

2 answers:

Pie3 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]3 years ago

3 0

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

You might be interested in

Which equation represents an exponential function with an initial value of 500 ?

Sergeeva-Olga [200]

Answer: f(x) = 500(2)^x

3 0

3 years ago

If the ratio of corresponding segments is 2:3, then the ratios of the areas and volumes are

kobusy [5.1K]

Answer:

4:9

Step-by-step explanation:

Area is squaring and Volume is cubing

So it'd be 2^2:3^3, or 4:9

I hope this helped and have a good rest of your day!

6 0

3 years ago

A. Write an expression for the area of the shaded region.

tekilochka [14]

Answer:

A. $25x² - 64$

B. $(5x + 8)(5x - 8)$

Step-by-step explanation:

A. The area of the shaded region = area of the whole large square - area of the 4 smaller squares

= (5x*5x) - 4(4*4)

Area of shaded region = $25x^2 - 64$

B. The expression, $25x^2 - 64$ , is the difference of two perfect squares, 25x² and 64. Therefore, apply the rule of factoring difference of two perfect squares.

Thus, $a^2 - b^2 = (a + b)(a - b)$