Which equation best represents the graph shown below?

Mathematics

2 answers:

Korolek [52]3 years ago

7 0

Answer:

f(x) = x^2 - 2

Step-by-step explanation:

This looks like a parabola with the vertex at (0, -2)

It also goes through points (1, -1) and (-1, -1)

The equation: f(x) = a (x - h)^2 + k

f(x) = a x^2 - 2

we see f(1) = -1 = a (1)^2 - 2 ,

-1 = a - 2, a = 1

so f(x) = x^2 - 2

Anton [14]3 years ago

5 0

Answer:

x to the power of 2 equals 3

Step-by-step explanation:

because

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In the triangle below, 4/5 represents which ratio?

ASHA 777 [7]

Answer:
sin (C)

Explanation:
In a right-angled triangle, special trig functions can be applied. These functions are as follows:
sin (theta) = $\frac{opposite}{hypotenuse}$

cos (theta) = $\frac{adjacent}{hypotenuse}$

tan (theta) = $\frac{opposite}{adjacent}$ 

Now, let's check the triangle we have:
We have two options:
First option:
5 is the hypotenuse of the triangle
4 is the side adjacent to angle B
Therefore, we can apply the cos function:
cos (B) = $\frac{4}{5}$ 

Second option:
5 is the hypotenuse of the triangle
4 is the side opposite to angle C
Therefore, we can apply the sin function:
sin (C) = $\frac{4}{5}$

Among the two options, the second one is the one found in the choices. Therefore, it will be the correct one.

Hope this helps :)

8 0

3 years ago

Read 2 more answers

What is the Area of the circle in pi units if the diameter is 6 cm?

sergejj [24]

The area of the circle in pi units when the diameter of this circle is 6 centimeters is 9π centimeters.

<h3>What is the area of the circle?</h3>

The area of the circle is the space occupied by it. It is the product of pi and square of its diameter divided by 4. The area of the circle can be given as,

$A=\pi\dfrac{d^2}{4}$