Working with Linear Graphs

Practice Problems
Working with Linear Graphs

Directions: On this worksheet you can practice calculating the equation of a line given two grid points, graph titles, writing equations with the proper variables, as well as interpolating and extrapolating data.

omit

Question 1

From the graph a student chooses the following two grid points to calculate the equation of the data's trend line: (6, 6) and (13, 19). What is the trend line's numerical slope?

0.5381.861.461.00

omit

Question 2 If the graph's title is Length (cm) vs 1/Width (1/cm), then what unit should be used to measure the line's slope?

it would have no unitscm^-2cm²cm

omit

Question 3 What is the trend line's y-axis intercept?

-5.1 cm-22.3 cm^-1-5.1 cm^-1-22.3 cm

omit

Question 4 When writing the equation of the trend line which variable, L or 1/W, should be substituted for x?

it doesn't matterL1/W

omit

Question 5 Based on the trend line's equation, what is the area of a rectangle having a width of 1.077 cm?

1.86 cm²24.1 cm2.00 cm²1.72 cmThe area cannot be determined
without more information