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2 years ago

Let f={(1,2),(2,3),(5,6),(7,8) evaluate f(2)and f(5)?

Mathematics

1 answer:

Flauer [41]2 years ago

5 0

Given:

$f=\{(1,2),(2,3),(5,6),(7,8)\}$

To find:

The values of f(2) and f(5).

Solution:

If an ordered pair $(x,y)$ is in the function $f$ , then $f(x)=y$ .

In the given set of ordered pairs one ordered pair is (2,3). So, by using the above definition, we get

$f(2)=3$

In the given set of ordered pairs one ordered pair is (5,6). So, by using the above definition, we get

$f(5)=6$

Therefore, the value of f(2) is 3 and the value of f(5) is 6.

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2 years ago

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Given the functions f(x) = 4x2 − 1, g(x) = x2 − 8x + 5, and h(x) = –3x2 − 12x + 1, rank them from least to greatest based on the

kvasek [131]

The axis of symmetry of a quadratic function $f(x)=ax^2+bx+c$ is given by the equation $x=h$ , where h is the x-coordinate of the vertex and is equal to $\frac{-b}{2a}$ .

1.
$f(x)=4x^2-1 \\
a=4 \\ b=0 \\ \Downarrow \\
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\hbox{the axis of symmetry:} \\
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2.
$g(x)=x^2-8x+5 \\
a=1 \\ b=-8 \\ \Downarrow \\ h=\frac{-(-8)}{2 \times 1}=\frac{8}{2}=4 \\ \\
\hbox{the axis of symmetry:} \\
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3.
$h(x)=-3x^2-12x+1 \\
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\hbox{the axis of symmetry: \\
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2 years ago

What's the difference between (-3)^2 and -3^2

erastova [34]

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3 years ago

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saw5 [17]

Answer:

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Step-by-step explanation:

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2 years ago

Let f={(1,2),(2,3),(5,6),(7,8) evaluate f(2)and f(5)?​

Let f={(1,2),(2,3),(5,6),(7,8) evaluate f(2)and f(5)?