Plz help and dont skip
In the equation y - y1 = m(x - x1), the variable "y1" represents which of the following?

The y-coordinate of a variable point on the line

The y-coordinate of a fixed point on the line

Slope of the line

The y-coordinate of the midpoint on the line

The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?

When y’all answer can y’all explain too !

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.