We definex as a year between 2008 and 2013 and y as the total number of smartphones sold that year, in millions. The table shows values ofx and corresponding y values.

2008 - 3.7
2009 - 17.3
2010 - 42.4
2011 - 90
2012 - 125
2013 - 153.2

Is y a function of x? Explain why or why not.

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

1 and 0

step-by-step explanation: