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Alenkinab [10]
3 years ago
13

What is the slope for (2, -1) and (3,1)

Mathematics
2 answers:
VMariaS [17]3 years ago
6 0

To find the slope (m), use the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}        and plug in the two points

(2, -1) = (x₁, y₁)

(3, 1) = (x₂, y₂)

[lines usually go from left to right, so the point furthest to the left is the 1st point]

m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{1-(-1)}{3-2}     [two negative signs cancel each other out and become positive]

m=\frac{1+1}{3-2}

m=\frac{2}{1}

m = 2

ale4655 [162]3 years ago
3 0

Answer: 2

Step-by-step explanation:

m = y2 - y1 /   x2- x1

where slope is m,

so in this case it would be

m= 1-(-1) / 3-2

m=2/1

m=2

Note that you can do it either way

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A farmer has 500 acres to plant acres of corn, x, and acres of cotton, y. Corn costs $215 per acre to produce, and cotton costs
hodyreva [135]

Answer:

x + y = 500

215x + 615y = 187,500

Step-by-step explanation:

The first equation can show the amount of land.  The farmer has 500 acres to plant corn, x, and cotton, y.

x + y = 500

The second equation can show the cost.  The farmer has $187,500 to invest when corn costs $215 per acre and cotton costs $615 per acre.

215x + 615y = 187,500

The system of equations is

x + y = 500

215x + 615y = 187,500

4 0
3 years ago
Which of the following represents a function?
Svetlanka [38]
Is there a none option? if not then it has to be B.
7 0
3 years ago
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Describe five ways to represent a function ?
Over [174]
1. A function can be represented verbally. For example, the circumference of a square is four times one of its sides.

2. A function can be represented algebraically. For example, 3x+6 3 x + 6.

3.A function can be represented numerically.

4. A function can be represented graphically.

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6 0
3 years ago
A rectangular yard has area 96 square feet. If the width of the yard is 4 ft less than length, what is the perimeter,in feet, of
marusya05 [52]
Area of the rectangular yard = 96 square feet
Let us assume the length of the yard = x feet
Width of the yard = x - 4 feet
Then
Area of the yard = length * width
96 = x(x - 4)
96 = x^2 - 4x
x^2 - 4x - 96 = 0
x^2 - 12x + 8x - 96 = 0
x(x - 12) +8(x - 12) = 0
(x - 12)(x + 8) = 0
As the value of length cannot be negative so
x - 12 = 0
x = 12
So
Length of the yard = 12 feet
Width of the yard = x - 4 feet
                             = 12 - 4 feet
                             = 8 feet
Then
Perimeter of the yard = 2 (length + width)
                                   = 2(12 + 8)
                                   = 2 * 20 feet
                                   = 40 feet.
So the perimeter of the yard  is 40 feet.
6 0
3 years ago
Complete the equation for the horizontal line that passes through (5, –7).<br><br> y =
KiRa [710]

Answer:

y = - 7

Step-by-step explanation:

The equation of a horizontal line is

y = c

where c is the value of the y- coordinates the line passes through.

The line passes through (5, - 7) with y- coordinate - 7, thus

y = - 7 ← equation of horizontal line

8 0
3 years ago
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