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2 years ago

Which equation is in slop-intercept form?

Mathematics

2 answers:

Goshia [24]2 years ago

7 0

Answer:

$\boxed {\boxed {\sf y=3x+12}}$

Step-by-step explanation:

The slope-intercept form of an equation is:

$y=mx+b$

where m is the slope and b is the y-intercept.

Let's evaluate each answer choice. The one in slope-intercept form will have the y variable isolated on one side of the equation.

A. 2x+3y=21: This is not is slope-intercept form. The y is not isolated.
B. y-7=3(x+4): Again, this isn't slope-intercept form. A 7 is being subtracted from y
C. y²=3x²-6: This also isn't correct. y is being squared.
D. y=3x+12: This choice is correct. The y is all alone on the left side of the equation.

The equation in slope-intercept form is D. y=3x+12

frosja888 [35]2 years ago

6 0

Step-by-step explanation:

Only D, y = 3x + 12 is in slope-intercept form.

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"Data from the World Health Organization in 2013 were used to predict the life expectancy of men in a country from the life expe

marshall27 [118]

Answer:

The predicted life expectancy of men in a country in which the life expectancy of women is 70 years is 65.33 years.

Step-by-step explanation:

The least square regression line is used to predict the value of the dependent variable from an independent variable.

The general form of a least square regression line is:

$\hat y=\alpha +\beta x$

Here,

y = dependent variable

x = independent variable

α = intercept

β = slope

The regression line to predict the life expectancy of men in a country from the life expectancy of women in that country is:

$\hat y=3.73 +0.88 x$

Compute the life expectancy of men in a country in which the life expectancy of women is 70 years as follows:

$\hat y=3.73 +0.88 x$

$=3.73 +(0.88\times 70)\\=3.73+61.6\\=65.33$

Thus, the predicted life expectancy of men in a country in which the life expectancy of women is 70 years is 65.33 years.

6 0

3 years ago

Someone help me plzz

galina1969 [7]

Answer: y=5x+3
Step by step explanation:
Perpendicular meaning that the product of the slope/gradient is -1 hence ...
-1/5 * x = -1
x = -1/-1/5
x = 5
The equation perpendicular to y=-1/5x-3 is y=5x-c
Now it contains the points (1,2)
x variable is 1 and y variable is 2 plug them into the line equation
2=5(1)-c
2=5-c
2-5=-c
-3=-c divide by -1
3=c
Hence the perpendicular equation is y=5x+3
Hopefully it’s correct :)

5 0

2 years ago

Find a value for the following: (3+2)^3

dsp73

The answer is 125

To solve:

(3+2)=5. *Parentheses first*

5^3 = 125

8 0

2 years ago

Read 2 more answers

In need help please fast

slava [35]

Answer:

hope it helped u alot