The "line of best fit" for a scatterplot must pass through at least of the data points in the data set. a. 0 b. 1 c. 2 d. 3

A line of best fit  is a straight line that best represents the data on a scatter plot.   This line may pass through some of the points, none of the points, or all of the points.

Step-by-step explanation:

I say that the answer is not one of the choices you gave

lol we need to see what the question is asking about

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places