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sergejj [24]
3 years ago
5

What is the slope of the line that passes through the points (3,1) and (-2,5)

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
8 0
The gradient formula is:

m = y2 - y1/ x2 - x1 

> m = 5 - 1 /-2 -3
>> m = 4/-5x
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Indicate in standard form the equation of the line passing through the given points G (4,6) H (1,5)
Delicious77 [7]

First, find the slope (m) = \frac{y2 - y1}{x2 - x1} = \frac{5 - 6}{1 - 4} = \frac{-1}{-3} = \frac{1}{3}

Now plug in ONE of the points and the slope into the point-slope equation:

y - y₁ = m(x - x₁); where (x₁, y₁) is the chosen point.

y - 5 = \frac{1}{3}(x - 1) (I used (1,5) as the chosen point)

3(y - 5) = x - 1

3y - 15 = x - 1

3y -14 = x

-14 = x - 3y → x - 3y = -14

Answer: x - 3y = -14

4 0
3 years ago
A car with an initial cost of $26,500 depreciates at a rate of 7.5% per year. Write the function that models this situation. The
solniwko [45]

Answer:

f(x) = 26500 * (0.925)^x

It will take 7 years

Step-by-step explanation:

A car with an initial cost of $26,500 depreciates at a rate of 7.5% per year. Write the function that models this situation. Then use your formula to determine when the value of the car will be $15,000 to the nearest year.

To find the formula we will use this formula: f(x) = a * b^x. A is our initial value which in this case is $26500. B is how much the value is increasing or decreasing. In this case it is decreasing by 7.5% per year. Since the car value is decreasing we will subtract 0.075 from 1. This will result in the formula being f(x) = 26500 * (0.925)^x. Now to find the value of the car to the nearest year of when the car will be 15000 we plug 15000 into f(x). 15000 = 26500 * (0.925)^x. First we divide both side by 26500 which will make the equation: 0.56603773584=(0.925)^x. Then we will root 0.56603773584 by 0.925. This will result in x being 7.29968 which is approximately 7 years.

4 0
3 years ago
Mkz-qetu-kwp<br> j o i n <br> a l l <br> a l o u d
astraxan [27]

is this a meet code?

i would lime to join if so

6 0
3 years ago
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Point Z is translated right 1,done 8. Which is the coordinate pair for the translated point Z. A.(1.4) B.(1,-4) C.(4,-1) D.(-8,1
nikdorinn [45]
Assuming point Z is at the origin (0,0), you move from the origin over to the right one, and go down 8.
Therefore you would be at point (1,-8) answer D
7 0
3 years ago
A rectangular Persian carpet has a perimeter of 220 inches the length of the carpet is 22 inches more than the width what are th
Sedaia [141]

Answer:

length= 65 inches

width= 45 inches

Step-by-step explanation:

65 plus 65= 130

45 plus 45= 90

130 plus 90= 220 in.

5 0
3 years ago
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