Question

help me plzzzzzz



here 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?

Answer 1

If the number of chirps is on the horizontal axis, is that x or y?

Answer 2

x

Answer 3

Right.
That means the temperature is the vertical axis, y.
The equation is y = 3x + 25.
They tell you the temperature, or y, is 55.
You need to find the number of chirps, or x.

Answer 4

Use the given equation.
Plug in 55 for y, and solve for x.

Answer 5

10=x

Answer 6

y = 3x + 25

55 = 3x + 25

30 = 3x

10 = x

x = 10

Answer: 10 chirps per second.

You are correct.