3 years ago

I-Ready | Construction of Triangles | Practice - Level G | Question 2

Mathematics

1 answer:

r-ruslan [8.4K]3 years ago

5 0

B. Is correct I think. Hope this helped you

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Help me with this if anyone can! Please and thank you

Valentin [98]

ANSWER

$y = 3x - 3$

EXPLANATION

Let

$y = mx + c$

be the equation.

We can choose any two ordered pairs to determine the equation of the relation.

$(6,15) \: and \: (8,21)$

We find m using the formula;

$m = \frac{y_2-y_1}{x_2-x_1}$

$m = \frac{21 - 15}{8 - 6} = \frac{6}{2} = 3$

The equation becomes

$y = 3x + c$

When x=6, y=15.

This implies that,

$15 = 3(6) + c$

$15= 18 + c$

$15 - 18= c$

$c = -3$

The equation of the relation is therefore,

$y = 3x -3$

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3 years ago

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Answer:

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Alana ate breakfast at a restaurant. The bill came to $79.75. If she left 20% tip, how much was the tip?

Lana71 [14]

$79.75*0.2= 15.95
$79.75-15.95= $63.80
63.80+15.95= $79.75

Answer= $15.95

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2 years ago

The relationship between the cost, y, in dollars, and the feet of steel beam, x, bought can be modeled by the proportional equat

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Answer:

The relationship is

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What value of x makes this equation true?<br> 5-2(x + 8) = 6x + 7

zhuklara [117]

Answer:

x = negative 9/4

Step-by-step explanation:

-2x-11=6x+7

-2x-11+11=6x+7+11

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