Question

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

Answer 1

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

Answer 2

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?

Answer 3

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

Answer 4

so whats the answer then

Answer 5

@rebex it’s y=3x + 3

Answer 6

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