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spin [16.1K]
3 years ago
6

Need help with slope line. ​

Mathematics
1 answer:
klio [65]3 years ago
4 0

y-1=-2(x-4)

simplifies to

y-1=-2x-8

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What is the answer to x 3,6,9,12 y -6,-12,-18,-24 y=mx+b
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Answer:

The equation of the line or linear function is:

y = -2x

Step-by-step explanation:

Given the table

x        3       6       9        12

y      -6    -12      -18      -24

As there is a constant change in x and y values, so the table represents the linear function.

The slope-intercept form of the linear equation

y = mx+b

where

  • m is the slope
  • b is the y-intercept

Taking any two points, let say

  • (3, -6)
  • (6, -12)

Determining the slope between (3, -6) and (6, -12)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

m=\frac{-12-\left(-6\right)}{6-3}

Refine

m=-2

Thus, the slope m = -2

now substituting m = -2 and (3, -6) in the slope-intercept form

y = mx+b

-6 = -2(3) +b

-6 = -6 + b

b = -6 + 6

b = 0

Thus, the y-intercept b = 0

now substituting m = -2 and b = 0  in the slope-intercept form of linear function

y = mx+b

y = -2x + 0

y = -2x

Therefore, the equation of line or linear function is:

y = -2x

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3 years ago
A water sprinkler sprays water outward in a circular pattern. What square feet will be watered if the radius of the spray from t
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Answer:

Radius of sprinkler=18 ft

Area of watered region=2×3.14×18

=111.24 ft^2

5 0
3 years ago
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