Line N passes through the points (–1, 4) and (–1, –4). A coordinate plane. Which is true of line N?
Line N is a vertical line with an undefined slope.
Line N is a vertical line with a slope of zero.
Line N is a horizontal line with an undefined slope.
Line N is a horizontal line with a slope of zero.

line Number is a vertical line with an undefined slope

Step-by-step explanation:

Slope, m

= (change in y) / (change in x)

= (y - y1) / (x - x1)

Points are represented as coordinates, (x, y)

Given point 1 ( -1, 4), point 2 ( -1, -4)

These correspond to (x1, y1) and (x, y) respectively

m = (-4 - 4) / (-1 - (-1))

m = -8 / 0

Slope, m is undefined

At a constant value of x in the x-axis on a Cartesian plane, the slope of the line is undefined

see below

step-by-step explanation:

7.   there are 10 data points in the set.   the middle point is between 5 and 6.   the middle point in the top half is 8   and the middle point in the bottom half is 3. to find the iqr , take point 8 and subtract point 3

mid term   point 8 = 100   point 3 = 88

iqr = 100-88 = 12

final   point 8 = 93   point 3 = 78

iqr = 93 - 78 = 15

the final has the greatest iqr

6.   b - there is a high data value that causes the data set to be asymmetrical for the males: the data for males are high and asymmetrical .   there is an outlier for the males that skews the data

5.   the   iqr is a better measure of spread for the movies and basketball games.   since the basketball game has an outlier, we do not want to use standard deviation for measurement.  

3.   the exam median is much higher than the class median.   the median line is farther to the right on the exams

2.   there is no way to tell what the means are from the box and whisker plots.  

good job you smart son of a gun you are smarter that einstein. 7