Here is a list of eight integers
11 19 15 3 13 7 22 x
The value of x is three times the median of these eight integers.
(a) Find the median
(b) Work out the numerical value of the mean of the eight integers.

this cant be answered without the graph. you may need to add it.

this equation is in point-slope form.

where,

using this equation you can gather a point and the slope, which gives you enough information to draw a line. transform the equation to standard form to start.

the equation is now in standard form, we have a point, as well as the slope:

point: (0, -6)

slope: -2

plot (0,-6), then simply rise/run with the provided slope of -2, once you feel you have a comfortable amount of points - draw a line.

i think its a but i dunno im sleepy.

19x+54, simply add up the x values and all other corresponding values to get this answer.