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2 years ago

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4. Speed increases the distance required to stop. A. True B. False

1 answer:

In-s [12.5K]2 years ago

7 0

The answer is true........

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2 years ago

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3 years ago

Calculate the rf value for the reactant b spot. estimate the ruler to the nearest tenth, report the answer using two significant

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3 years ago

40.32 is 76.8% of what number

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3 years ago

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yan [13]

Answer:

$y=-\dfrac{1}{2}(x+4)^2-1$

Step-by-step explanation:

Vertex form: $y=a(x-h)^2+k$

where:

$(h, k)$ is the vertex
$a$ is some constant

Given:

vertex = (-4, -1)
point on parabola = (-2, -3)

Substitute given values into the formula to find $a$ :

$\implies -3=a((-2)-(-4))^2+(-1)$

$\implies -3=a(2)^2-1$

$\implies -3=4a-1$

$\implies -2=4a$

$\implies a=-\dfrac{2}{4}=-\dfrac{1}{2}$

Therefore, the equation of the parabola is:

$y=-\dfrac{1}{2}(x+4)^2-1$

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1 year ago

Read 2 more answers