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Debora [2.8K]
4 years ago
14

Please please help me! Barely anyone answers me when I need it most.

Mathematics
1 answer:
Andre45 [30]4 years ago
5 0

Answer: 2 and 3 are correct

Step-by-step explanation:

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Which points lie on the line whose equation is 8x - 2y + 7 = -9? Select all that apply.
Anestetic [448]

Answer:

A.(-2, 0)

C. (-1.4)

Step-by-step explanation:

we know that

If a point lie on the line, then the point must satisfy the equation of the line (makes the equation true)

we have

8x-2y+7=-9

subtract 7 both sides

8x-2y=-9-7

8x-2y=-16

divide by 2 both sides

4x-y=-8

Substitute the value of x and the value of y of each point in the linear equation and analyze the result

<u><em>Verify each point</em></u>

case A) we have

(-2, 0)

For x=-2, y=0

substitute

4(-2)-(0)=-8

-8=-8 ---> is true

so

the point lie on the line

case B) we have

(1, 3)

For x=1, y=3

substitute

4(1)-(3)=-8

1=-8 ---> is not true

so

the point not lie on the line

case C) we have

(-1, 4)

For x=-1, y=4

substitute

4(-1)-(4)=-8

-8=-8 ---> is true

so

the point lie on the line

case D) we have

(1, -4)

For x=1, y=-4

substitute

4(1)-(-4)=-8

8=-8 ---> is not true

so

the point not lie on the line

case E) we have

(0, -1)

For x=0, y=-1

substitute

4(0)-(-1)=-8

1=-8 ---> is not true

so

the point not lie on the line

7 0
3 years ago
Taylan is making a line plot of these dragonfly lengths. How many marks should Taylan make above 3 in the line plot? Dragonfly L
aalyn [17]

Answer:

Taylan should make 2 marks above the 3 1/4 in the line plot.

Step-by-step explanation:

6 0
3 years ago
Can someone help me with this task<br><br> 50PTS!!!!
djverab [1.8K]

Answer:

So sorry if what I solved is wrong .I did my best!

8 0
2 years ago
How many milligrams os7 grams​
kirza4 [7]

Answer:

7000 milligrams

Step-by-step explanation:

1 gram is 1000 milligra

4 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
irinina [24]

Answer:

1.) D

2.) 12in

3.)6

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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