Question

Write the following in function notation y = 3x - 10

Answer 1

In function notation, where f is the function, f(x)=3x-10. Using f(x) means you can write things like f(0) which means: what is the value of the function when x=0? Think of f for flexibility, because functions have greater flexibility than variables like y.

Answer 2

f(x) = 3x - 10

Explanation:

For the equation y = ax +b, the function rule is given by

f(x) = ax +b

In writing function rule for an equation, we generally replace y with f(x) if the equation is given in terms of x.

Comparing y = 3x - 10 with y = ax +b, we get

a = 3 and b = -10

Hence, using the above mentioned concepts, the function rule is

f(x) = 3x - 10