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3 years ago

2. Is the following quadratic equation in Vertex form? y = - (x + 2) + 4 O NO O Yes

Mathematics

1 answer:

puteri [66]3 years ago

3 0

Answer:

Step-by-step explanation:

No. y = - (x + 2) + 4 is not even a quadratic.

If you want a quadratic you must indicate squaring: y = - (x + 2)^2 + 4.

This IS in vertex form; the vertex is at (-2, 4).

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Step-by-step explanation:

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3 years ago

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3 years ago

Which is a correct two column proof. Given <4 and

vladimir1956 [14]

The initial statement is: QS = SU (1)

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Take the expression (1): QS = SU

We multiply both sides by R (QS)R = (SU)R

But (QS)R = S(QR) Then: S(QR) = (SU)R (3)

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3 years ago

Determine the graph of the polar equation r=4/(1-1/2cosx(theta))

crimeas [40]

Answer:

see below

Step-by-step explanation:

We assume you want the graph of ...

$r=\dfrac{4}{1-\frac{1}{2}\cos{(\theta)}}$

A graphing calculator or spreadsheet is useful for this.

You know cos(θ) = cos(-θ), so the graph is symmetrical about the x-axis. You can evaluate the function at a few points to find the general outline.

r at 0° = 8

r at 30° ≈ 7.05

r at 45° ≈ 6.19

r at 60° ≈ 5.33

r at 90° = 4

r at 120° = 3.2

r at 135° ≈ 2.96

r at 150° ≈ 2.79

r at 180° ≈ 2.67

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3 years ago