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3 years ago

Graph the equation y= x^2 - 2x - 8 on the accompanying set of axes. You must plot 5 points including the roots and the vertex.

Mathematics

1 answer:

Vanyuwa [196]3 years ago

7 0

Answer:

I'm not so sure about this one so sorry if this is wrong

Step-by-step explanation:

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The graph highlights two other points on the trend line. Use them to find another equation for the trend line shown for this sca

frutty [35]

Option A:

The equation for the trend line is y = 82x + 998.

Solution:

The points on the line are (2, 1162) and (11, 1900).

Here, $x_1=2, y_1=1162, x_2 = 11, y_2=1900$

Slope of the line:

$$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$$m=\frac{1900-1162}{11-2}$

$$m=\frac{738}{9}$

m = 82

Point-slope formula:

$y-y_{1}=m\left(x-x_{1}\right)$

$y-1162=82\left(x-2\right)$

$y-1162=82x-164$

Add 1162 on both sides of the equation.

$y=82x+998$

The equation for the trend line is y = 82x + 998.

Hence Option A is the correct answer.

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3 years ago

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IRINA_888 [86]

Answer:

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Step-by-step explanation:

Normally a equation has to have an equal sign and all the numbers add up

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Answer:

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Step-by-step explanation:

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