Write a rule for the function represented by the table.
Input(×) 0 1 2 3 4
Output(y)3 6 9 12 15
A.y=3×
B.y=3×+3
C.y=5×+1
D.y=×+5
@rebex it’s y=3x + 3
Answers for the 6 questions
1. d=66t
2. y=5-n
3. $5.50, $11.00, $16.50; E=5.50h
4. if d > 5 then C=4.70d, if d < 5 then C= 4.70d- 1; $17.80, $32.90
5.y=3x + 3
6. a.C=28m + 127 b. $379 c. *graph
To find the rule for the function represented by the table, we need to observe the pattern between the input (x) and the output (y) values.
Looking at the table, we can see that the output (y) is always three times the input (x). For example, when x=1, y=3×1=3; when x=2, y=3×2=6; and so on.
Therefore, the correct rule for the function represented by the table is:
A. y = 3×
try using the letter x for the variable, not the multiply operator.
Since all the choices are linear, check for the slope of the line.
as x increases by 1, y increases by 3. So, look for
y = 3x
Now, if x=0, 3x=0, but y is 3. So, we need to adjust things, leaving the 3x alone:
y = 3x+3
the ratio of the number of adults to children at a concert is 5:6. The ratio of the number of boys to the number of girls is 2:5. There are 36 more girls than boys at the concert. How many adults are there at the concert?
a/(b+g) = 5/6
b/g = 2/5
g = b+36
b/(b+36) = 2/5
b=24
so, g=60
a/84 = 5/6
a = 70