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kolbaska11 [484]
3 years ago
15

Find the slope of the line that passes through (4, 18) and (7, 10).

Mathematics
2 answers:
ElenaW [278]3 years ago
7 0

Answer:

slope =  \frac{8}{ - 3}

Step-by-step explanation:

(4 \:  \:  \:  ,\:  \: 18) =  > (x1 \:  \:  ,\:  \: y1) \\ (7 \: , \:  \:  \:  \:  \: 10) =  > (x2 \:  \:  \:  ,\:  \:   y2)

slope \\  =  \frac{y1 - y2}{x1 - x2}  \\  =  \frac{18 - 10}{4 - 7}  \\  =  \frac{8}{ - 3}

hope this helps

brainliest appreciated

good luck! have a nice day!

hichkok12 [17]3 years ago
3 0

The right answer is -8/3

please see the attached picture for full solution

hope it helps

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Answer:

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(y - 3)/(x + 4) = -5/4 simplify to get the required equation: 5x + 4y + 8 = 0

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3 years ago
Jaffrey was offered a job at $950 per month with a $22 increase every month for the first year. How much money can he make in th
iogann1982 [59]

Answer:

Jaffrey will end up making $1214 in the first year

Step-by-step explanation:

950 + 12(22) = ?

first lets find out what 12 * 22 =?

12 * 22 = 264

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3/7

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4 0
1 year ago
Andy joins a social networking site. After day three, he has 25 friends; after day eight, he has 40 friends. Write the equation
Allisa [31]

Answer:

Point slope intercept form: The equation for line is given by; y-y_1=m(x-x_1) ......[1] ; where m is the slope and a point (x_1, y_1) on the line.

Let x represents the number of days and y represents the number of friends.

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⇒ We have two points i.e,

(3, 25) and (8, 40)

First calculate slope(m);

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

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now, substitute the given values of m=3 and a point (3, 25) in [1] we get;

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y-25+25 = 3x - 9+25

Simplify:

y =3x + 16

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y = 3(18) + 16 = 54+16 = 70

Therefore, he will have on day 18, if he continues to add the same number of friends each day is, 70 friends.

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2 years ago
What is the value of b2 - 4ac for the following equation?<br><br> 2x 2 - 2x - 1 = 0
NikAS [45]
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\Delta=b^2-4ac

\Delta=(-2)^2-4*2*(-1)=4+8=12
5 0
2 years ago
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