A) Using Excel, or some other graphing software, plot the values of y as a function of x. (You will not submit this spreadsheet. However, the results will be needed later in this problem). x y
1 2.5
2 3.3
3 4.5
4 4.9
5 7.0
B) Use the trendline option to draw the best fit line for the above data and use it to determine the slope and y-intercept.

   y = 1.06 x + 0.14

            r² = 0.95

Explanation:

a) To make this graph, a spreadsheet-type calculation program is used, see attached.

On the y axis are the measured values

On the x-axis, the values checked in the experiment are placed.

From the graph we see that a linear graph and that one of the values has a strong deviation with respect to the others

b) The red line is the best straight line that can be drawn,

    for this the quality ajust is r²  

the closer to 1 the better the fit

the equation of the line is

            y = 1.06 x + 0.14

            r² = 0.95

graph question answered .. you think better when you are relaxed and happy

conduction, convection, radiation