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3 years ago

Brainliest to right answer

Mathematics

1 answer:

sergejj [24]3 years ago

7 0

Answyou are smart jusyc t figure it our8nf

Step-by-step explanation:

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What does the graph of y = 4x + 3 look like?

nexus9112 [7]

Answer:

the graph should look like it.

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4 years ago

Part 2: Identify the vertex, focus, and directrix of each. Then sketch the graph.

Andre45 [30]

Answer: $\bold{1.\quad \text{Vertex}}:(-3,-6)\qquad \text{Focus}:\bigg(-3,-\dfrac{17}{4}\bigg)\qquad \text{Directrix}:y=-\dfrac{19}{4}$

2. Vertex: (-5, 4) Focus: (-6, 4) Directrix: x = -4

<u>Step-by-step explanation:</u>

The vertex form of a parabola is y = a(x - h)² + k or x = a(y - k)² + h

(h, k) is the vertex
p is the distance from the vertex to the focus
-p is the distance from the vertex to the directrix

$\bullet \quad a=\dfrac{1}{4p}$

1) y = (x + 3)² - 6 → a = 1 (h, k) = (-3, -6)

$a=\dfrac{1}{4p}\qquad \rightarrow \qquad 1=\dfrac{1}{4p} \qquad \rightarrow \qquad p=\dfrac{1}{4}\\\\\text{Focus = Vertex + p}\\\\.\qquad =\dfrac{-18}{4}+\dfrac{1}{4}\\\\.\qquad = -\dfrac{17}{4}\qquad \rightarrow \qquad \text{Focus}=\bigg(-3,-\dfrac{17}{4}\bigg)\\\\\\\text{Directrix: y = Vertex - p}\\\\.\qquad \quad y=\dfrac{-18}{4}-\dfrac{1}{4}\\\\.\qquad \quad y= -\dfrac{19}{4}$

****************************************************************************************

$2.\quad x=-\dfrac{1}{4}(y-4)^2-5\qquad \rightarrow \quad a=\dfrac{1}{4}\qquad (h, k)=(-5,4)$

$a=\dfrac{1}{4p}\qquad \rightarrow \qquad -\dfrac{1}{4}=\dfrac{1}{4p} \qquad \rightarrow \qquad p=-1\\\\\text{Focus = Vertex + p}\\\\.\qquad =-5+\ -1\\\\.\qquad = -6\qquad \rightarrow \qquad \text{Focus}=(-6,4)\\\\\\\text{Directrix: y = Vertex - p}\\\\.\qquad \quad y=-5+\ -1\\\\.\qquad \quad y= -4$

7 0

4 years ago

A B C or D need asap please

Paladinen [302]

Answer:multiplication property of -1

Step-by-step explanation:

because it is muliplying by negatives

3 0

3 years ago

Read 2 more answers

Charges $70 per car and earned $50 in tips. Write an equation to represent this situation.

Anna35 [415]

Answer:

$70c + $50

Step-by-step explanation:

When its says $70 per car, that means you multiply 70 by the amount of cars to know how much the total car. So in your equation you would $70c and c represents the amount of cars.

You would add $50 because that's how much tips they would get. So now your equation is $70c + $50

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3 years ago

Please help!<br> Question:<br> Divide £40 in the ratio 3 : 7

Nady [450]

Step-by-step explanation:

here's your answer hope it helps you

5 0

3 years ago