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3 years ago

What is the slope of the line that contains the coordinate points (8, -3) and (-2, 7)

2 answers:

8 0

To find the slope of a line given the coordinates of two points, you should use the formula, Slope=y2-y1/x2-x1.

To find the slope of a line which contains the coordinates (8,-3) and (-2,7), you should substitute them into the previous mention formula.

Slope=y2-y1/x2-x1
Slope=(7--3)/(-2-8)
Slope=(10)/(-10)
Slope=-1

The slope of the line which contains the coordinates (8,-3) and (-2,7) is -1 or in other words letter A from the given choices.

stepan [7]3 years ago

8 0

Can you Add a picture of the slope please

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A cleaning company charges x dollars per hour to clean floors and y dollars per hour to clean the rest of the house

Nina [5.8K]

Answer:

(15,18)

Step-by-step explanation:

write two equations with the information provided.

2x + 3y = 84

x + 4y = 87

use the property of substitution to answer.

x + 4y = 87, x = 87 - 4y

2(87 - 4y) + 3y = 84

174 - 8y + 3y = 84

174 - 84 = 8y - 3y

90 = 5y

90/5 = y

y = 18

Add the value of Y to an original equation. Solve for X

2x + 3(18) = 84

2x + 54 = 84

2x = 84 - 54

2x = 30

x = 30/2

x = 15

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3 years ago

What are the x intercepts

Oksi-84 [34.3K]

Answer

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Step-by-step explanation:x is the connection of the y intercept in a equation dealing with a graph or coordinates.

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3 years ago

Solving quadratic equations using the quadratic formula.

mixer [17]

Answer:

what is there supposed to be a picture

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2 years ago

Graph the image mop for the translation

valentinak56 [21]

Answer:

the correct points would be one unit to the right, thusly, (2,4) (4,-1) (-2,1)

Step-by-step explanation:

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3 years ago

Read 2 more answers

Use the following graph of the function f(x) = x3 − 3x2 − x + 3 to answer this question: graph of x cubed minus 3 x squared minu

Marina CMI [18]

The average rate of change is also known as the slope. If we are looking to find the average rate of change between x = -1 and x = 2, in order to find the slope between those 2 x values, we need the y's that go along with them. Fill in -1 for x in the function and solve for y: $(-1)^3-3(-1)^2-(-1)+3=0$ . That means that the coordinate is (-1, 0). Fill in 2 for x in the function and solve for y: $(2)^3-3(2)^2-(2)+3=-3$ . The coordinate there is (2, -3). Now we can set up the slope formula to find the average rate of change between those 2 points: $\frac{-3-0}{2-(-1)}=\frac{-3}{3}=-1$ . Therefore, the average rate of change between x = -1 and x = 2 is -1

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3 years ago