If f(x) = 4x - 3, find the following: f(-1)?
If f(x) = 5x - 1, find the following: f(a - 2)?
Thank you.
2007-07-06 05:55:27 · 7 answers · asked by associates07 1 in Science & Mathematics ➔ Mathematics
f(-1)=-7
f(a-2)=5a-11
2007-07-06 06:03:27 · answer #1 · answered by angel_in_disguise930 2 · 0⤊ 0⤋
Don't you have a teacher? Or a book?
Just replace x and you'll get the answer.
i.e. f(x) = 4x - 3 ==> f(-1) = 4(-1) - 3
2007-07-06 13:07:49 · answer #2 · answered by paris 1 · 0⤊ 0⤋
I do not like marking someone down when the answer is wrong and a lot of effort was put in trying to answer the question.
f(x) - is pronounced function of x which means that the variable in the right hand side of the equation is the letter x
f(-1) simply means function of -1 which in this case is function of x when x = -1
It is like saying, if y=4x-3 calculate the value of y when x=-1
You have already been given the correct answers by several experts and I will therefore not solve them.
2007-07-06 15:20:34 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Question 1
f(-1) = - 4 - 3 = - 7
Question 2
f(a - 2) = 5 (a - 2) - 1 = 5a - 11
2007-07-06 15:31:57 · answer #4 · answered by Como 7 · 0⤊ 0⤋
4x-3
4(-1)-3= -4-3=-7
5(-2)-1= -10-1= -11
2007-07-09 03:55:43 · answer #5 · answered by ~*tigger*~ ** 7 · 0⤊ 0⤋
The answer to your first question is -7.
If you can't figure out the answer to the second one from that, you need to pay more attention in class.
2007-07-06 13:03:47 · answer #6 · answered by kcbranaghsgirl 6 · 0⤊ 0⤋
f(-1)=4*(-1)-3=-4-3=-7
f(a-2)=5*(a-2)-1=5a-10-1=5a-11
2007-07-07 14:20:51 · answer #7 · answered by Kulubaki 3 · 0⤊ 0⤋