SOLUTION: how do you solve this equation if its asking for the linear function. * f(x), where f(4)=1 and f(1)=4

SOLUTION: how do you solve this equation if its asking for the linear function. * f(x), where f(4)=1 and f(1)=4

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Question 345696: how do you solve this equation if its asking for the linear function.
* f(x), where f(4)=1 and f(1)=4
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Hi,
Using point-slope form of line

Questions states the following points
(4,1)& (1,4)
.

.

.
using slope-intercept form
y = mx + b where be in the y-intecept
.
substituting (4,1) values for ex.
1 = -1(4) + b
b = 5
.
f(x) = -x + 5
.
Check your answer:
f(1) = 4 and f(4) = 1
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