Evaluate f(3) for each of the following:
a) {(1,2), (2,0), (3,1), (4,2)}
b) {(1,2), (2,3), (3,4), (4,5)}
c) {(1,3), (2,5), (3,2), (4,0)}

Question

Evaluate f(3) for each of the following:
a) {(1,2), (2,0), (3,1), (4,2)}
b) {(1,2), (2,3), (3,4), (4,5)}
c) {(1,3), (2,5), (3,2), (4,0)}

nnesha · Answer

evaluate what ?

shelby1290 · Answer

@Nnesha I'm supposed to get an answer. At the back of my textbook the answers are:
a) 1    b)4     c) 2

shelby1290 · Answer

I just don't understand how they came to be and I must show my work.

bee_see · Answer

here, look at the x values that are 3. The Y values are 1,4, and 2

shelby1290 · Answer

ohhhhhhhhhhhhh I see. That makes sense!

bee_see · Answer

You normally have f(x),right? In this case, they replaced the x with 3. x=3.

shelby1290 · Answer

@Bee_see Mhm i get it. Wow that was pretty simple. Do you have time for another one? It's still related to notations but a bit more complicated....

bee_see · Answer

OK. Let's see it.

shelby1290 · Answer

Determine f(-2), f(0), f(2) and f(2x) for each function. 
a) f(x) = -3x^2 + 5
b) f(x) = 4x^2 -2x + 1

shelby1290 · Answer

Do i just plug them in for x

bee_see · Answer

Yes!

bee_see · Answer

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