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olga2289 [7]
2 years ago
9

I need help (Find the slope of the line through the given pair of points) (-7,-18),(4,4)

Mathematics
1 answer:
larisa [96]2 years ago
7 0

Answer:

2

Step-by-step explanation:

You can find slope using the slope equation :\frac{y2-y1}{x2-x1}

  • Plug in the two points : \frac{4-(-18)}{4-(-7)}
  • Calculate by adding the numbers: \frac{22}{11}
  • Reduce the fraction : 2

The slope is 2

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The following chart shows the number of rows in an auditorium and the total number of seats. What equation defines the number of
Anastaziya [24]

Answer:

<em>Answer: c) S=20R+60</em>

Step-by-step explanation:

<u>Linear Model</u>

The chart supplied shows the number of rows (R) in an auditorium and the total of seats (S).

We'll find the equation that relates them. The equation of a line can be expressed in the slope-intercept form:

S = mR + b

Where m is the slope and b is the intercept.

The slope is found by:

\displaystyle m=\frac{S_2-S_1}{R_2-R_1}

We'll use two sample points (20,460) and (45,960):

\displaystyle m=\frac{960-460}{45-20}=\frac{500}{25}

m = 20

The value of b can be found by using one of the points, for example (20,460), and having m=20:

460 = 20*20 + b

Thus: b = 460 - 400 = 60.

The equation is:

S = 20R + 60

You can test the other points and check they belong to the same line.

Answer: c) S=20R+60

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3 years ago
Question 6<br> 6. Find the length of line segment AB.
meriva
7^2+5^2= 74 now you have to square root 74 which is 8.60233 or 8.6
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Sam collects baseball cards. He gave 6 cards to his brother. He then got 4 new cards from his father. Sam now has 12 cards. How
JulijaS [17]

Answer:

14

Step-by-step explanation:

If he had 14 then he gave away 6, he'd have 8. 8 plus 4 is 12. He had 14 before giving any away.

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Answer:

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Step-by-step explanation:

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