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cluponka [151]
3 years ago
12

Find the slope of the line through (–9, –10) and (–2, –5). A. –five-sevenths B. seven-fifths C. five-sevenths D. –negative seven

-fifths (please help much aprecciated)
Mathematics
1 answer:
vredina [299]3 years ago
8 0

Answer:

C 5/7

Step-by-step explanation:

We can find the slope of a line using

m = (y2-y1)/(x2-x1)

   = (-5 - -10) /(-2 - -9)

   = (-5 +10)/(-2+9)

   5/7

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The difference would be 10.
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Mk, someone knows this answer. I know it! Pwease help!
rosijanka [135]

Answer:

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120 x 2 = <em>240</em>

17 x 17 = 289, 289 x 2 = <em>578</em>

17 x 16 = <em>272</em>

Add all given areas:

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2 years ago
How can you write the equation for a linear function if you know only two ordered pairs for the function?
Vinvika [58]
1. m
2. One set of ordered pairs
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To show why this is, I’m going to explain how to write the equation for a linear function with two random sets of ordered pairs - (1,0) and (5, 8).

First, find the slope. The formula for slope is m = (y2 - y1)/(x2-x1) where m is the slope and (x1, y1) and (x2, y2) are two sets of points.

This is why #1 is m. M is the letter used when finding slope.

To find m, I plug in the two sets of ordered pairs.

m = (8-0)/(5-1)
m = 8/4
m = 2

An equation for a line (linear function) is written in something called slope-intercept form. It looks like y = mx + b. m is the slope and b is the y-intercept (number y equals when x = 0). If m = 3 and b = 1, the equation would be y = 3x + 1.

Here, you have just solved for m and know it equals 2. Plug that value in for m.

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To solve for b, plug one ordered pair in for x and y. I will use (1,0)

0 = 2(1) + b
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Now that you know b = -2, plug that in for b.
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3 years ago
A shop has a sale of
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use the is/of x %/100 method.

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2 years ago
On average, Gil reads 57 pages in a book each week.<br> How many pages des Gil read in 12 weeks?
Triss [41]

Answer:

684

Step-by-step explanation:

57 times 12

12 weeks times 57 pages= 684 pages in 12 weeks

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3 years ago
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