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3 years ago

Is -1/2 rational or irrational

Mathematics

2 answers:

Vladimir79 [104]3 years ago

5 0

-1/2 is rational, have a good day

Hunter-Best [27]3 years ago

5 0

-1/2 is rational because it can be expressed as a ratio of 2 integers.

-1 and 2 are both integers because they are either whole numbers or of the opposite value (negative).

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Answer:

Step 1

Step-by-step explanation:

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3 years ago

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seropon [69]

Answer:

Step-by-step explanation:

Pick any 2 points and then plug it in to the formula for slope

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3 years ago

Let f(x)=x^2-6x+13. what is the vertex form of f(x)? what is the minimum value of f(x)?

Oksana_A [137]

Answer:

The vertex form of a quadratic equation is:

$f(x) = (x-3)^2+4$

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Step-by-step explanation:

Given a quadratic equation of the form $f (x) = ax ^ 2 + bx + c$ then the x coordinate of the vertex is

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So for $f(x)=x^2-6x+13$

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$x=3$

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$y=f(3)=4$

By definition the minimum value of the quadratic function is the same as the coordinate of y of its vertex

So the minimum value is $y=4$

The vertex form of a quadratic equation is:

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

Where

a is the main coefficient. $a=1$

h is the x coordinate of the vertex. $h=3$

k is the y coordinate of the vertex. $k=4$

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$f(x) = (x-3)^2+4$

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3 years ago

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VashaNatasha [74]

4 wont be the answer. answer is 3.42

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3 years ago

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lapo4ka [179]

Answer:

true

Step-by-step explanation: trust me

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3 years ago