Use the function rulef(x)=3x-2 . Find the output f(1.5).
A.2.5
B.–2.5
C.6.5
D.–6.5
This is not working out for me...can someone show me how to do this please...
f ( 1.5 ) = 3 * 1.5 - 2 = 4.5 - 2 = 2.5
Answer : A
so does that mean that 1.5 =2.5...I am sorry I just don't understand this yet...I thought they had to equal the same amount...?
f ( x ) mean : " f is a function of x "
f ( 1.5 ) are value of FUNCTION 3 x - 2 when x = 1.5
so of f ( 1.5 ) = 2.5
ok...thank you
To find the output of a function, you simply need to substitute the given value into the function and evaluate it. In this case, we need to find the output of the function f(x) = 3x - 2 when x = 1.5.
To do this, substitute x = 1.5 into the function:
f(1.5) = 3(1.5) - 2
Now, compute the expression:
f(1.5) = 4.5 - 2
f(1.5) = 2.5
Therefore, the output of the function f(1.5) is 2.5. Hence, the correct answer is A. 2.5.