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2 years ago

I need the answer to y=2x+7 in a graph and passes through (3,3)

Mathematics

1 answer:

nevsk [136]2 years ago

4 0

The slope-intercept form is y = 2x-3.

Step-by-step explanation:

Given,

The equation of the line is y=2x+7.
The general equation of the line is in the form y= mx+c.
where 'm' represents the slope of the line.

Comparing the given equation with general equation, it can be determined that :

m = 2 and c = 7 (y-intercept).

The given line passes through the point (3,3) which is equal to (x1,y1)

Therefore, x1=3 and y1=3.

Substitute m=2 and the values of (x1,y1) in the slope-intercept form,

The slope-intercept form is (y-y1) = m (x-x1)

(y-3) = 2(x-3)

y = 2x-6+3

y = 2x-3

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Answer:

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The p value for this case would be given by:

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Step-by-step explanation:

Information given

$\bar X=31.1$ represent the sample mean

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$\alpha=0.02$ represent the significance level for the hypothesis test.

z would represent the statistic

$p_v$ represent the p value

Hypothesis to test

We want to test if the true mean is equal to 31.3 MPG, the system of hypothesis would be:

Null hypothesis: $\mu =31.3$

Alternative hypothesis: $\mu \neq 31.3$

Since we know the population deviation, the statistic is given by

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Replacing we got:

$z=\frac{31.1-31.3}{\frac{1.3}{\sqrt{140}}}=-1.82$

The p value for this case would be given by:

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