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3 years ago

Which of the following points does not lie on the line y = -2x +5?

Mathematics

2 answers:

saw5 [17]3 years ago

8 0

Answer:

C (3, 1 )

Step-by-step explanation:

To determine if a point lies on the line, substitute the x- coordinate of the point into the equation and if the value obtained equals the y- coordinate of the point then it lies on the line, otherwise not on line.

A (4 , - 3)

y = - 2(4) + 5 = - 8 + 5 = - 3 ← lies on line

B (- 2, 9 )

y = - 2(- 2) + 5 = 4 + 5 = 9 ← lies on line

C (3, 1 )

y = - 2(3) + 5 = - 6 + 5 = - 1 ≠ 1 ← not on line

D (- 1, 7 )

y = - 2(- 1) + 5 = 2 + 5 = 7 ← lies on line

E (2, 1 ) = - 2(2) + 5 = - 4 + 5 = 1 ← lies on line

Thus (3, 1 ) does not lie on the line → C

igor_vitrenko [27]3 years ago

6 0

Answer:

C and E are not on the line.

Step-by-step explanation:

Just substitute for the x and the y and see which ordered pair fits and which does not:

If Left side of the equation = right side then the point fits.

A. y = -3

-2x+5 = -2(4) + 5 = -3 So A is on the line

B. y = 9

-2(-2) + 5 = 9 So this point does lie on the line.

C. y = 1

-2(3) + 5 = -1 No.

D. y = 7

-1(-1) + 5 = 7 YES.

E. y = 1

-2(1) + 5 = 3 NO.

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alexandr1967 [171]

Answer:

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3 years ago

Read 2 more answers

Tell whether the given number is a solution of each question. ( Must show work for credit)

guajiro [1.7K]

Answer/Step-by-step explanation:

1. $9 = 2a + 3$ ; 3

Let's solve for a.

$9 - 3 = 2a$ (subtraction property of equality)

$6 = 2a$

$\frac{6}{2} = a$ (division property of equality)

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$a = 3$

Therefore, 3 is a solution to 9 = 2a + 3

2. $5n - (-30) = 5$ ; 7

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$5n = 5 - 30$ (Subtraction property of equality)

$5n = -25$

$\frac{5n}{5} = \frac{-25}{5}$ (division property of equality)

$n = -5$

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3. $4.4r - 2.8 = 1.6$ ; 1

$4.4r = 1.6 + 2.8$

$4.4r = 4.4$

$\frac{4.4r}{4.4} = \frac{4.4}{4.4}$

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Therefore, 1 is a solution of $4.4r - 2.8 = 1.6$ .

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3 years ago

Ik it’s 7 in the morning but can somebody help a gal out

faust18 [17]

Answer:

Step-by-step explanation:

The vertical scale gives us the frequency or the number of pets under each category . From the diagram;

The number of Dogs is 11 while there is only 1 horse

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11 - 1 = 10

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4 years ago

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Please help me. I need help thank you.

STatiana [176]

Answer:

Step-by-step explanation:

the ratio is 1:2

so,

$4*2=8\\7*2=14\\1*2=2$

the only shape with those numbers is C

Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!

Stay Brainy!

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3 years ago

Select all of the integers less than -3 1: -12 2: 0 3: -4 4: 3 5: -10

MatroZZZ [7]

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