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3 years ago

6

The equation y-1=-7(x-3) is written in point-slope form. What is the y-intercept of the line?

2 answers:

ArbitrLikvidat [17]3 years ago

5 0

For this case we have that, the equation of the line in slope intercept form is given by:

$y = mx + b$

Where:

m is the slope

b is the cut point with the y axis

If we have:

$y-1 = -7 (x-3)$

We take it in the form $y = mx + b$ we have:

Knowing that $- * - = +$ and applying distributive property to the terms of the parenthesis:

$y = -7x + 21 + 1\\y = -7x + 22\\So,\ b = 22$

Answer:

Option D

Sphinxa [80]3 years ago

3 0

It's maybe 22 ,(-_-メ)

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3 years ago

A city police officer using radar checked the speed of 26 cars as they were travelling down a city street and the data is given

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Answer: The distribution of the data set is positively skewed.

<u>Explanation: </u>

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For positively skewed distribution, $Mean > Median>Mode$

For negatively skewed distribution, $Mean < Median$

The mean of the given data set is given below:

$Mean = \frac{27+23+22+38+43+24+25+23+22+54+31+30+29+48+27+25+29+28+26+33+25+21+23+34+20+23}{26}$

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Now, the Median is:

To find the median we need to sort the data in ascending order as:

$20,21,22,22,23,23,23,23,24,25,25,25,26,27,27,28,29,29,30,31,33,34,38,43,48,54$

$Median=\left(\frac{N+1}{2} \right)^{th} item$

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$=13.5^{th} item$

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3 years ago

Eric made 3 batches of cupcakes for the bake sale. He needs at least 120 cupcakes for the bake sale. He also plans on giving 20

polet [3.4K]

Answer:

c≥47

Step-by-step explanation:

120+20=140

140/3≈46.667

46.667≈47

Ther can be no less than 47 cupcakes

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