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3 years ago

The graph of the function f(x)= x2 − 4x + 6 is shown here. What is its axis of symmetry?

Mathematics

2 answers:

irga5000 [103]3 years ago

7 0

Answer:

Axis of symmetry at $x=2$

Step-by-step explanation:

The graph of the function $f(x)= x^2 - 4x + 6$

To find axis of symmetry we use formula $x=\frac{-b}{2a}$

Given equation is in the form of

$y=ax^2+bx+c$

$a=1, b=-4, c=6$

Plug in the values in the formula

$x=\frac{-b}{2a}$

$x=\frac{-(-4)}{2(1)}$

$x=2$

Axis of symmetry at $x=2$

alisha [4.7K]3 years ago

6 0

X=-b/2a

x = 4/2=2

..................

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Answer: $1590cm^3$

Step-by-step explanation:

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a = base

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3 years ago

A right triangle includes one angle that mesures 30 degrees. What is the measure of the third angle?

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The third angle is 60 degrees. A triangle has 180 degrees so 180-30-90=60

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Classify the polynomial. 3r^5-2r^2+5r

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Answer: 5th degree trinomial

The degree is 5 because its the largest exponent of the single variable polynomial.

It's a trinomial because there are 3 terms. The terms are separated by a plus or a minus.

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3 years ago

A shelter has enough food to feed an average of 80 hungry people a day for 14 days. If an average of 32 people are at the shelte

egoroff_w [7]

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What is the value of f(-1) when f(x)=2x+2? F(-1)=?

igomit [66]

Here is your function:

$f(x)=2x+2$

You're looking for f(-1). To get your answer, you have to replace all the x's with -1.

Here is your new equation:

$f(-1) = 2(-1)+2$

Multiply 2 by -1

$2 \times -1 = -2$

Remember:

MULTIPLYING

Positive(+) times negative(-) is equal to negative

Positive(+) times positive(+) is equal to positive

Negative(-) times negative(-) is equal to positive

Negative(-) times positive(+) is equal to negative

DIVIDING

Positive(+) divided by positive(+) is equal to positive

Positive(+) divided by negative(-) is equal to negative

Negative(-) divided by positive(+) is equal to negative

Negative(-) divided by negative(-0 is equal to positive

Since you're multiplying a negative number by a positive number, the answer will be negative.

Here is your new equation:

$f(-1) = -2+2$

Add -2 and 2:

$-2+2 = 0$

That means your answer is 0

↓

$f(-1)=0$

If you have any questions, feel free to ask in the comments! :)

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