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3 years ago

A line has a slope of 1 9 and includes the points ( – 6,z) and (3,1). What is the value of z?

Mathematics

1 answer:

vaieri [72.5K]3 years ago

5 0

Answer:

z = - 170

Step-by-step explanation:

Calculate the slope m using the slope formula and equate to 19

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

with (x₁, y₁ ) = (3, 1) and (x₂, y₂ ) = (- 6, z)

m = $\frac{z-1}{-6-3}$ = $\frac{z-1}{-9}$ = 19 ( multiply both sides by - 9 )

z- 1 = - 171 ( add 1 to both sides )

z = - 170

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Can u please answer this question

Paha777 [63]

One Way:
We can change the mixed number to a decimal for comparing.

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1.4 m    > 1.25 m
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Darren's jump was higher by (1.4-1.25) 0.15 m

Or another way change the decimal to a fraction and the mixed to an improper fraction too.

$1\frac{1}{4}$ = $\frac{5}{4}$ (Luke)
1.4 = $\frac{7}{5}$ (Darren)
We need a common denominator to compare
$\frac{5*5}{4*5}$ (Luke)
$\frac{7*4}{5*4}$ (Darren)
$\frac{25}{20}$ (Luke)
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$\frac{28}{20} > \frac{25}{20}$
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By:
$\frac{28}{20}$ - $\frac{25}{20}$ = $\frac{3}{20}$
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3 years ago

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Alja [10]

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3 years ago

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Andre45 [30]

Answer:

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Step-by-step explanation:

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Then, divide : 2.75 by 25 ( a quarter ) = .11

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Hope this helps :)

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4 years ago

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sweet [91]

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