Please can you answer it Need it

Equation of a line is y= mx + c

where

m = gradient

c = y intercept

Equation of the line using point (1,7) and gradient - 2 is

y - 7 = -2(x-1)

y - 7 = -2x + 2

y = -2x + 2 + 7

y = -2x + 9

Hope this helps

Step-by-step explanation:

Please can i have the points

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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