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3 years ago

Y = 4x + 3

2 answers:

3 0

D) perpendicular!
A perpendicular's definition is: a straight line at an angle of 90° to a given line, plane, or surface.
And if you mark them on a graph you could see these two are opposite of each other.

Likurg_2 [28]3 years ago

3 0

Answer:

Perpendicular.

D is the correct option.

Step-by-step explanation:

The given equations are

$y=4x+4\\\\y=-\frac{1}{4}x-4$

The slope intercept form of a line is given by

$y=mx+b$

Here, m is the slope and b is the y intercept.

Comparing given equation with slope intercept form of the line

Slope of first line = 4

Slope of second line = -1/4

These two slopes are not equal hence, lines are not parallel.

We can see that -1/4 is the negative reciprocal of 4. Since.

$4\cdot-\frac{1}{4}=-1$

We know that the slopes of perpendicular lines are negative reciprocal of each other.

Hence, the lines are perpendicular.

D is the correct option.

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3 years ago

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Alla [95]

Answer:

a) The probability that Jodi scores 78% or lower on a 100-question test is 4%.

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Step-by-step explanation:

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b) In this case, the number of questions is 250, so the standard deviation needs to be calculated again:

$\sigma=\sqrt{\frac{p(1-p)}{n} }= \sqrt{\frac{0.85*(1-0.85)}{250} }=0.02$

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The probability for this value of z is

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6 0

3 years ago

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Paladinen [302]

Answer:

put 8/3

Step-by-step explanation:

Given

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3 years ago

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lisov135 [29]

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6 0

3 years ago

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