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2 years ago

What is the equation of this graphed line?

Mathematics

2 answers:

Arturiano [62]2 years ago

8 0

Answer:

y = -1/3x - 5

Step-by-step explanation:

Use rise over run to find the slope: (y2 - y1) / (x2 - x1)

Plug in the points:

(y2 - y1) / (x2 - x1)

(-7 + 3) / (6 + 6)

-4 / 12

= -1/3

Plug in the slope and a point into y = mx + b, and solve for b:

y = mx + b

-3 = -1/3(-6) + b

-3 = 2 + b

-5 = b

Plug in the slope and b into y = mx + b

y = -1/3x - 5 is the equation of the line

Ymorist [56]2 years ago

3 0

Y= 1/3x-5 is the answer.

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2 years ago

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2 years ago

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Answer:

Step-by-step explanation:

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2 years ago

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MrRa [10]

Answer:

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Step-by-step explanation:

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2 years ago

A college administrator would like to estimate the average grade point average (average of GPA) of all the current registered st

bonufazy [111]

Answer: 346

Step-by-step explanation:

Given : Margin of error : E= 0.05

Standard deviation : $\sigma=0.4$

Significance level : $\alpha=1-0.9=0.1$

Critical value : $z_{\alpha/2}=1.645$

The formula to calculate sample size ( if proportion is known) :-

$n=(\dfrac{z_{\alpha/2}\sigma}{E})^2\\\\\Rightarrow\ n=(\dfrac{(2.326\times0.4)}{0.05})^2\\\\\Rightarrow\ n=346.257664\approx346$

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2 years ago