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Delvig [45]
2 years ago
14

What is the slope of the line (-1 ,-7) and (3,9)?

Mathematics
2 answers:
3241004551 [841]2 years ago
7 0

Answer:

from what i know, i just got done with that, the slope is i think 4

Step-by-step explanation:

hope this helps, brainliest please

Feliz [49]2 years ago
5 0

Answer:

slope = 4

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 1, - 7 ) and (x₂, y₂ ) = (3, 9 )

m = \frac{9-(-7)}{3-(-1)} = \frac{9+7}{3+1} = \frac{16}{4} = 4

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Which number is a solution of the inequality? b > 2.1 a. –12 b. 5 c. 1 d. –8
riadik2000 [5.3K]
Hope i understood it right 

b > 2 

choices are
a. -12
b. 5
c. 1
d. -8
- so than b need being greater than 2 so this mean that choice b. is right sure with this number of 5 

hope this will help you 
8 0
4 years ago
What is the correct solution to solving this equation?
ioda

Answer:

A

Step-by-step explanation:

If you simplify both sides you will get answer A.

Answer B does not apply because it is not an equation meaning it has no solutions.

Answer C is not possible with the equation given because if you tried to move x to one side of the equation, x would cancel itself out.

Answer D is not possible for the same reason as Answer C.

5 0
3 years ago
Use the substitution method to solve the system of equations below.
Serhud [2]

Answer:

  • x = -1
  • y = -3

Step-by-step explanation:

Since you have an expression for y, it is convenient to use it.

  -2x + 8(3x) = -22 . . . . . substitute 3x for y in the second equation

  22x = -22 . . . . . simplify

  x = -1 . . . . . . . . . .divide by 22

Substituting this value into the expression for y:

  y = 3(-1) = -3

The solution is (x, y) = (-1, -3).

4 0
4 years ago
For the straight line defined by the points ( 3 , 51 ) (3,51) and ( 5 , 87 ) (5,87) , determine the slope ( m m ) and y-intercep
Lerok [7]

Answer:

Intercept = - 3 ; slope = 18

Step-by-step explanation:

Given the points :

(3, 51) ; (5, 87)

x1 =3, y1 = 51, x2 = 5 ; y2 = 87

Slope intercept relation:

y = mx + c

m = slope ; c = intercept ; x and y are x, y vlayes respectively

Slope (m) = (y2 - y1) / (x2 - x1)

Slope (m) = (87 - 51) / (5 - 3)

Slope = 36 / 2

Slope (m) = 18

The intercept c :

m = 18 ; x = 5 ; y = 87

Substitute values into the slope intercept formula :

87 = 18(5) + c

87 = 90 + c

c = 87 - 90

c = - 3

Intercept = - 3

4 0
3 years ago
Please i need ur help <3
deff fn [24]
Hello!! the answer is 3xy
8 0
3 years ago
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