Students recorded the initial and final temperatures of different-colored soils exposed to direct sunlight for three hours. The students want to compare the total temperature change for each soil color. Each student has proposed a format for displaying the data. Which of these formats would be the MOST appropriate for displaying the results of this investigation? Explain your answer. Student 1: bar graph Student 2: line graph Student 3: pie chart Student 4: data table

help on the second one

Fully simplify

Find the coordinates of P.

In which quadrant do the following points lie? (a) (1,4) (b) (-3,2) (c) (4,-3) (d) (-4, -1)

Find the distance between the points whose coordinates are given. (-6, 8), (-11, 14)

Reflect the figure across the y-axis. Which is most likely the new figure?

To study the performance of three detergents and three different water temperatures, the following 'Whiteness' readings were obtained with specially designed equipment : Water Temp. Detergent A Detergent B Detergent C Cold water 57 55 67 Warm water 49 52 68 Hot water 54 46 58 Perform a two-way analysis of variance, using 5% level of significance. (Given F 5% = 6-94)