3 years ago

11. Write the equation of a line in point-slope form

Mathematics

1 answer:

Vika [28.1K]3 years ago

5 0

Answer:

Excuse me, wrong answer did not mean to type that. It would be C.

Step-by-step explanation:

This is because C. y - 5 = -2 (x+9) is an inequality. But, because of the slope of -2 passing through the point (-5, 9), it would be x - 9. So, C.

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If A ( 3, 5) and B (1, 4) lie on the graph of the line mx+cy = 7, find m and c

Diano4ka-milaya [45]

Answer:

m = -1, c = 2

Step-by-step explanation:

if A ( 3, 5) and B (1, 4) lie on the graph of the line mx + cy = 7, then their coordinates satisfy the equation of the line:

A: $3m+5c=7$

B: $m+4c=7$

From the second equation:

$m=7-4c$

Substitute it into the first equation:

$3(7-4c)+5c=7\\ \\21-12c+5c=7\\ \\-12c+5c=7-21\\ \\-7c=-14\\ \\c=2\\ \\m=7-4\cdot 2=7-8=-1$

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3 years ago

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DochEvi [55]

Answer:

4th option

Step-by-step explanation:

The two triangles are not similar as their measurements are different

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3 years ago

Read 2 more answers

3) -2x – 3y = -7 -4x + y = 21 A) (-8, 4) C) (2, 4) B) (-4,5) D) No solution

FromTheMoon [43]

Answer:

B). (-4, 5)

Step-by-step explanation:

-2x – 3y = -7 | ×2 |

-4x + y = 21 | ×1 |

-4x – 6y = -14

-4x + y = 21

____________ --

-7y = -35

y = -35/-7

y = 5

-4x + y = 21

-4x + 5 = 21

-4x = 21 - 5

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x = 16/-4

x = -4

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3 years ago

If 3x x 10=22, what is the value of 5x +8?

scZoUnD [109]

Step-by-step explanation:

3x x 10 = 22

3x x 10 - 10 = 22 - 10

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x = 4

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3 years ago

contsruction workers resurface parts of the N1 highway . they completed 2km per day how many kilometers are completed in total a

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Answer:

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Step-by-step explanation:

365×3= 1 095

1 095×2km= 2 190km

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2 years ago