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Thepotemich [5.8K]
3 years ago
6

Please help! Math Slope

Mathematics
2 answers:
Simora [160]3 years ago
8 0

Answer:

B) m = -1

Step-by-step explanation:

Slope = change in y and x

Choose 2 from y and 2 from x

so

-2 - - 3 / 7 - 8

= 1/-1

= -1

The answer is -1

Hope this helps :)

ICE Princess25 [194]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Calculate the slope m using the slope formula

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

with (x₁, y₁ ) = (7, - 2) and (x₂, y₂ ) = (8, - 3) ← 2 ordered pairs from the table

m = \frac{-3+2}{8-7} = \frac{-1}{1} = - 1 → B

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iogann1982 [59]
You start by finding two points on the line. In this case, (-4,1) and (-2,2) will do.

To get from (-4,1) to (-2,2), you need to go “up 1, right 2” which gives you a slope of m = 1/2

Next you need the b-value, which comes from the y-intercept of (0,3). The b-value is 3.

Putting the slope and b-value into y=mx+b, you have y = 1/2 x + 3.
4 0
3 years ago
. Could someone please explain this to me in detail. I am very confused. Thank you so much!. . A candle is 17 inches tall after
andrew-mc [135]

The generic equation of the line is:

H-H0 = m (T-T0)

Where,

m: slope of the line

(T0, H0): ordered pair belonging to the line.

The slope of the line is:

m =\frac{H2-H1}{T2-T1}

Substituting values we have:

m =\frac{15-17}{5-3}

Rewriting:

m =\frac{-2}{2}

m = -1

Then, choosing an ordered pair we have:

(T0, H0) :( 5, 15)

Substituting values we have:

H-15=-(T-5)

Rewriting the equation:

H-15=-T+5

H=-T+5+15

H=-T+20

Then, for 8 hours we have:

H=-8+20

H=12

Answer:

a linear equation to model the relationship between height H of the candle, and T time is:

H=-T+20

the candle will be 12 inches after burning 8 hours

7 0
2 years ago
Read 2 more answers
HELP PLEASE!!! Find an equation of a line through (√3,12) parallel to the line:
amm1812

Answer:

just put like what oh yea put 72

3 0
2 years ago
Below is a net for a rectangular pyramid.
katrin [286]

Answer:

B

Step-by-step explanation:

6 0
2 years ago
What is two less than 3 times a number is the same as the number plus 10.
d1i1m1o1n [39]
2 less than (3 times a number) is the same as (the number plus 10)
2 less than (3*x) = (x + 10)
3x - 2 = x + 10
From here, you solve! :)

3x - 2 - x = x + 10 - x
2x - 2 = 10
2x - 2 + 2 = 10 + 2
2x = 12
2x / 2 = 12 / 2
x = 6

Hope this helps! :)
6 0
3 years ago
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