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Ket [755]
2 years ago
13

Write the equation for the line that has a slope of -4 and passes through the point (-2, 2)

Mathematics
2 answers:
xxMikexx [17]2 years ago
8 0
Answer: y= -4x+ 6


Step 1: Write an equation

To start off, let’s write the outline for the equation we will need. From my understanding of the question, we will need to put the equation in slope- intercept form. Let’s write the formula now.

y= mx+ b

Step 2: Substitute information

Now that we know the formula, we need to substitute the information we are given. Let’s start with the slope, which is represented in the equation by the letter m.

y= mx+ b
y= -4x+ b

Step 3: Solve

Now let’s solve for b. We will do so by substituting the given point into the equation by changing y and x. We will use that information to solve, which will bring us the only other unknown variable, b. Let’s do this now.

y= -4x+ b
2= -4(-2)+ b
2= 8+ b
6= b

Step 4: Revise equation

We now know the answer for b. We can substitute this into the equation. Since y and x can remain a variable, this will complete our equation.

y= -4x+ 6


Hope this helps! Comment below for more questions.
Fynjy0 [20]2 years ago
5 0

Answer:

y = -4x - 6

Step-by-step explanation:

y = -4x + b

2 = -4(-2) + b

2 = 8 + b

-6 = b

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The mean of a normally distributed group of weekly incomes of a large group of executives is $1,000 and the standard deviation i
olga_2 [115]

Answer:

The z-score (value of z) for an income of $1,100 is 1.

Step-by-step explanation:

We are given that the mean of a normally distributed group of weekly incomes of a large group of executives is $1,000 and the standard deviation is $100.

<em>Let X = group of weekly incomes of a large group of executives</em>

So, X ~ N(\mu=1,000 ,\sigma^{2}  = 100^{2})

The z-score probability distribution for a normal distribution is given by;

               Z = \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = mean income = $1,000

            \sigma = standard deviation = $100

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

Now, we are given an income of $1,100 for which we have to find the z-score (value of z);

So, <em><u>z-score</u></em> is given by = \frac{X-\mu}{\sigma} = \frac{1,100-1,000}{100} = 1

<em>Hence, the z-score (value of z) for an income of $1,100 is 1.</em>

4 0
2 years ago
What is the percent of 85?
Hitman42 [59]
100 i think, sorry if I’m wrong lol
5 0
3 years ago
1. 2 |-9| <br> 2. 4 |-4| <br> 3. 1 |1| <br> 4. 11 |11| <br> 5. 9 |-2|
Zielflug [23.3K]

The absolute value is the distance the number is from zero. For example, the absolute value of -4 is 4 and the absolute value of 4 is 4. Also |-24| is 24.

The absolute value of -9 is 9. 2 times 9 is 18.

The absolute value of -4 is 4. 4 times 4 is 16.

The absolute value of 1 is 1. 1 times 1 is 1.

The absolute value of 1 is 11. 11 times 11 is 121.

The absolute value of -2 is 2. 9 times 2 is 18.

  ━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

The opposite of a number is the difference it is from zero but on the other side (opposite sign). For example, the opposite of -5 is 5, and the opposite of 2 is -2.

11 is opposite of -11.

-8 is opposite of 8.

31 is opposite of -31.

-1 is opposite of 1.

-17 is opposite of 17.

  ━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

♡ Hope this helped! ♡

❀ 0ranges ❀

6 0
3 years ago
Find the Error. Judith states that -|14| = 14 because the absolute value can never be negative. Find her mistake and correct it.
AURORKA [14]

Answer:

-14

Step-by-step explanation:

The negative sign is not inside of the absolute value sign so it would be -14

5 0
2 years ago
PLEASE HELP ASAP IM PANICKING :(((
Inessa [10]

Answer:

A

Step-by-step explanation:

7 0
2 years ago
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