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SashulF [63]
3 years ago
13

How do functions work? Could someone explain how to know which questions are functions or not

Mathematics
1 answer:
belka [17]3 years ago
6 0

Answer:

A function is an equation that has only one answer for y for every x. A function assigns exactly one output to each input of a speceified type. It is common to name a function either f(x) or g(x) instead of y. f(2) means that we should find the value of our function when x  equals 2.

Step-by-step explanation:

here is a step by step equation:

f(x) = x + 7

if:

x=2

then:

f(2) = 2 + 7 = 9

A function is linear if it can be defined by

f(x) = mx + b

Makes sense? Hope I helped

plus I'm in middle school learning this also.

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Solve for the indicated variable.<br><br> 2a + 2b = c for b<br><br> B = ?/?
kodGreya [7K]

Answer:

b =  c − 2a

     ------------

          2

Step-by-step explanation:

2a + 2b = c

2b = c − 2a

b =  c − 2a

     ------------

          2

7 0
3 years ago
*repost since nobody answered* how would i answer this?
pshichka [43]

Answer:

b is not a function

Step-by-step explanation:

To be a function there must be a one to one correspondence.

Each x must only go to one y

b has an x that goes to two different y's

1 goes to 5 and 13.  That makes it a relation not a function

7 0
3 years ago
John sent 1,302 text messages in 6 weeks, How many texts was he sending per week (At what rate was he sending texts per week)?​
Llana [10]

Answer:

217 text messages

Step-by-step explanation:

1302/6 = 217

3 0
2 years ago
Read 2 more answers
HELPPPPPPPPPPPPP ME PLEASEEEEEE
julia-pushkina [17]

Answer:

d

Step-by-step explanation:

x/7 <2

Multiply both sides if the inequality by 7

x/7×7 < 2×7

Then cancel out the 7s from x/7×7 to get x by itself

now

x < 14

6 0
2 years ago
Can some help me its number 2
Hatshy [7]

W: (5,9)

X: (7,8)

Y: (9,2)

Z: (2,5)

hope this helps! tell me if i got anything wrong!

5 0
3 years ago
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