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jok3333 [9.3K]
3 years ago
12

Choose the equation below that represents the line passing through the point -3, -1 with a slope of 4

Mathematics
2 answers:
andre [41]3 years ago
4 0

Answer:

Y=4x-5

Step-by-step explanation:

xz_007 [3.2K]3 years ago
3 0

Answer: y = 4x + 11

Step-by-step explanation:

The equation of a straight line can be represented in the slope-intercept form, y = mx + c

Where c = intercept

Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis represent

The given line passes through

(- 3, - 1) and the slope is 4

To determine the intercept, we would substitute x = - 3, y = - 1 and m= 4 into y = mx + c. It becomes

- 1 = - 3 × 4 + c

- 1 = - 12 + c

c = - 1 + 12

c = 11

The equation becomes

y = 4x + 11

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An analyst from an energy research institute in California wishes to precisely estimate a 99% confidence interval of the average
Lena [83]

Answer:

190

Step-by-step explanation:

Data provided in the question:

Confidence level = 99%

Therefore,

α = 1% = 0.01

[ from standard normal table ]

z-value for z_{\frac{\alpha}{2}}= z_{\frac{0.01}{2}}= = 2.58

Margin of error, E = $0.06

Standard deviation, σ = $0.32

Now,

n = (\frac{z_{0.005}\sigma}{E})^2

Here,

n is the sample size (or the minimum number of gas stations  )

on substituting the respective values, we get

= (\frac{z_{0.005}\sigma}{E})^2

= (\frac{2.58\times0.32}{0.06})^2

= 13.76²

= 189.3376 ≈ 190

Hence,

minimum number of gas stations that she should include in her sample is 190

5 0
3 years ago
The diagram shows the net of a juice box. The box is a reactangular prism
dimaraw [331]

I don’t not know the answer for this question sorry

5 0
3 years ago
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PLS HELP <br> SOlve X-6=1
N76 [4]

You’re answer would be x=7

8 0
3 years ago
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How do i rewrite this in function form ?
Tema [17]
So now its-x + y = 6 &#10;
but you want it in y=mx+b so 

add x to both sides so that you have y on its own 
so now it's y = 6+x


4 0
3 years ago
The answer i'm so confused
Elena L [17]
Slope:  rise over run, for any straight line.  Example:  y=mx + b

Constant of proportionality:  a constant by which you multiply your independent variable (x) to get a specific value of the dependent variable (y).  Example: y=kx.

The main difference here is that y=mx+b may or may not pass through the origin, whereas y=kx always passes through the origin.

Both k and m are "slopes," with k pertaining to direct variation y=kx, and m pertaining to slope of a line which may or may not pass through the origin.

In this limited sense, both k and x are slopes.  k could be the slope of a straight line passing thru the origin, same as m, but m could not be the constant of proportionality if the line in question does not pass through the origin.
8 0
3 years ago
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