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ankoles [38]
3 years ago
10

F(x)=4x+5 f(4)= Question 9 I’m stuck on this help please!!

Mathematics
1 answer:
adoni [48]3 years ago
3 0

Answer:

f(x) = 4x+5\\f(4)=4x+5\\f(4)=4(4)+5\\f(4)=16+5\\f(4)=21

Step-by-step explanation:

The x in f(x) is the number you plug into the x spot. think of f(x) like y.

f(x) =y but it's y that tells you what x is supposed to be.

for example:

y=mx+b\\f(x)=mx+b\\f(x)=4x+5\\f(3)=4(3)+5\\f(4)=4(4)+5\\f(5)=4(5)+5

So you can say that f(any number) is a place holder for the y that tells you what x is supposed to be plugged in.

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6 0
3 years ago
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Can someone help pleaseee
vlada-n [284]

Answer:

The answer is n=16b

Step-by-step explanation:

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8 0
3 years ago
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PLEASE HELP!!
sp2606 [1]
Standard form is just putting (in this case) variables in alphabetical order. First we simplify- 2x+4=4y would become 1/2x+1=y. This is already in standard form, as numbers w/o variables come at the end. simplifying the next one is more tricky. first you get a variable/number alone-
9-2x-2y=4x+3
9-2y=6x+3
6-2y=6x
1-1/3y=x
1=x+1/3y
3=x+y
x+y=3
sorry if I was wrong and not of any help, But I do believe this is correct.
5 0
4 years ago
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