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Alla [95]
3 years ago
10

What does y=-1/2x-4

Mathematics
2 answers:
garri49 [273]3 years ago
6 0
Hope this helps

Remember what a standard form equation is. ⇩
Y= mx+ b
Know what this means for your equation⇩
M is the slope and b is the y intercept
Apply this to your equation ⇩
-1/2 is the slope and -4 is the y intercept
How to graph it?⇩
Start by plotting your first point on your y intercept of -4. Then apply rise/run. Since your equation is negative go up 1 and to the left 2. (negative goes to the left and positive to the right) Graph is put above

Anvisha [2.4K]3 years ago
5 0

Answer:

y = -1/2x - 4

From this, you can tell it's in slope-intercept form, has a slope of -1/2, and a y-intercept of -4.

I've included a picture of what this equation looks like.

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The function f (t) = 12(1 +0.03) can be used to determine the population, in thousands of a town t years
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f= the original amount of people, a steady growth throughout the years

t=time

In 1955 the population was 12 thousand. Compared to the current population of 12.36 thousand, the population then was roughly 77%.

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What is the result of subtracting the second equation from the first?
gtnhenbr [62]
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4 0
3 years ago
A regression of y = calcium content (g/L) on x = dissolved material (mg/cm2) was reported in the article "Use of Fly Ash or Sili
MatroZZZ [7]

Answer:

a) The slope = 0.144 , means that an increase in dissolved material by 1 mg/cm^2 will lead to an increase in Calcium content by 0.144 g/l

while the coefficient of determination = 0.869 , means that 86% of the variation ( natural ) of calcium content is explainable using the Linear model.

b) 10.878

c) S ≈ 1.99

Step-by-step explanation:

a) The slope = 0.144 , means that an increase in dissolved material by 1 mg/cm^2 will lead to an increase in Calcium content by 0.144 g/l

while the coefficient of determination = 0.869 , means that 86% of the variation ( natural ) of calcium content is explainable using the Linear model.

<u>B) Point estimate of true average calcium content </u>

Given that dissolved material = 50 mg/cm^2

= 3.678 + 0.144 * dissolved material

=  3.678 + 7.2 =  10.878

<u>C) Determine an estimate of error standard deviation </u>

Given that ; sum of squares ( SST ) = 320.398

                   COD ( r )  = 0.86

first;  calculate the value of SSE = SST - SST ( r^2 )

SSE = 320.398 - 320.398 ( 0.86) ^2

       = 83.43

Finally ; determine the estimate of error standard deviation

S^2 = SSE / n -2

      = 83.43 / 23 - 2

∴ S ≈ 1.99

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3 years ago
What the answer here?
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Answer:

x230x

Step-by-step explanation:

yan po ang tama na decimal pa breinlest at pa vote plsssssss thxxxxxxxx

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Answer:

63

Step-by-step explanation:

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