Question

Would my answer be correct??
There is a positive correlation between the number of times the Striped Ground Cricket chirps per second and the temperature in degrees Fahrenheit. If a scatter plot is made with the number of chirps on the horizontal axis and the trend line is found to be y = 3x + 25, then what would you predict the number of chirps per second to be when the temperature is 55 degrees Fahrenheit?



10<< i got this!

43

190

Answer 1

10, 42, 190 are the answer choices and you got 10?

Answer 2

@Miracrown yes!

Answer 3

How did you get 10?
can't see that from the given info
None of those choices actually make any sense based on the given info

Answer 4

\[ y = 3x + 25\]
\[55=3x+25\] looks good to me unless i am missing something

Answer 5

Oh, the answer is there but not 10

Answer 6

25, no?

Answer 7

It is there and it seems good so far to me as well

Answer 8

number of chirps is on the horizontal axis, it is the \(x\) value you are looking for

Answer 9

well i actually got two answers using two different ways!
10 & 190

How i got 10:
y = 3x + 25
55 = 3x+25
30 = 3x

How i got 190:
y = 3x + 25
y = 3(55) + 25
y=190

I dont know which equation to use!!

Answer 10

\[55=3x+25\\30=3x\\
10=x\]

Answer 11

@satellite73 oh thank you!! (: i guess i did do it right~

Answer 12

it is tricky so you have to read carefully

Answer 13

The chirps per second is on the "horizontal" meaning the x-axis so can not be x

Answer 14

Oh, I see, it was my fault, I was reading it a different way

Answer 15

it says the number of chirps is the "horizontal" axis

Answer 16

You're right...it's saying it's (temp) = 3(chirps) + 25 and then solve for chirps
So y = 55 then x = 10

Answer 17

The y-axis must represent the temperature

Answer 18

@Miracrown its alright(: but thanks for helping!

Answer 19

so you are looking for \(x\)

Answer 20

yw @ttop0816