What is liner function

Linear function is the function that produces a straight line as graph.

Linear function is a relationship in the form of:

Slope-intercept: y = mx + b

Point-slope form: y - y1 = m(x - x1)

Standard form: Ax + By = C

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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b, i believe, but not sure.