Question

NEED HELP ASAP FIND EQUATION OF LINEAR FUNCTION

Answer 1

Answer:

y = 3 - 2x

Step-by-step explanation:

The function y = f(x) passes through the points (1,1) and (2,-1).

So, any two known points satisfying a linear function are sufficient to determine the function equation.

From the two points form of straight line we can write,

$\frac{y - 1}{1 - (- 1)} = \frac{x - 1}{1 - 2}$

⇒ y - 1 = 2(1 - x)

⇒ y - 1 = 2 - 2x

⇒ y = 3 - 2x  

Therefore, this is the equation of the linear function. (Answer)