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Harlamova29_29 [7]
3 years ago
15

What is the y intercept of the line? X=24,36,48 and y= -8, 1, 10

Mathematics
1 answer:
goldenfox [79]3 years ago
4 0

Answer:

y intercept = - 40

Step-by-step explanation:

x 24 36 48

y -8 1 10

y = ax + b

a is the gradient (or slope).

b = y intercept.

a = (48-36) / (10-1) = 12/9

Rewrite to solve for b, which means it starts with b = ...

b = y - 12/9 * x

Substitute one point ( 24 , -8 )

b = -8 - (12/9 * 24)

b = y intercept = - 40

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Step-by-step explanation:

The expression to write in this problem is:

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So, the equation to write in this problem is

x+12=\frac{1}{2}x+5

We solve it as follows:

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x-\frac{1}{2}x+12=\frac{1}{2}x-\frac{1}{2}x+5\\\frac{1}{2}x+12=5

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