What is the range of function from y = 2x - 2 with the domain 1,2,3 ?

1 answer:

6 0

If the domain of y = 2x - 2 is {1, 2, 3}, then the range has only three values:

2(1)-2=0
2(2)-2=2
2(3)-2=4

The range is {0,2,4}.

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What is the domain of f(x)? {x|1 {x|1 {yl-4 {y|-4

Paul [167]

Answer:

$1\leq x$

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The domain of a function is the set of all possible values of x

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The domain of the line with slope equal to zero (horizontal line ) is the interval [3,5)

The domain of the piece-wise function is the interval [1,5)

$1\leq x$

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3 0

4 years ago

What are expressions for MN and LN? Hint Construct the altitude from M to LN.

Nikitich [7]

The question is missing the figure. So, it is in the atachment.

Answer: MN = x $\sqrt{2}$ LN = $\frac{x}{2}.(\sqrt{2} + \sqrt{6} )$

Step-by-step explanation: The first figure in the attachment is the figure of the question. The second figure is a way to respond this question by tracing the altitude from M to LN as suggested. When an altitude is drawn, it forms a 90° angle with the base, as shown in the drawing. To determine the other angle, you have to remember that all internal angles of a triangle sums up to 180°.

For the triangle on the left of the altitude:

45+90+angle=180

angle = 45

For the triangle on the right:

30+90+angle=180

angle = 60

With the angles, use the Law of Sines, which is relates sides and angles, as follows:

$\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}$