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1 of 8 0-day streak

Read and interpret a straight-line graph

Question 1 of 8

No calculator

Read the exact values from the displayed relationship between time and data used

The horizontal axis is measured in hours. The line passes through \(A(4, 8)\) and \(B(5, 10)\)

The vertical axis is measured in gigabytes

\[y = 0 + 2x\]

Treat the drawn segment as the known interval for this exercise. Beyond it, assume the same linear model continues only while the quantities remain physically possible. The stated coordinates and rule use graph units

Cartesian graph with horizontal axis time in hours and vertical axis data used in gigabytes. The window is x from 3 to 6 and y from 4 to 14. Unit gridlines are shown. Each vertical grid unit is one stated vertical-axis unit. The drawn segment runs from (3, 6) to (6, 12). The displayed rule is y equals 2 x34564567891011121314ABTime (h)Data (GB)
(a)1 mark

Find the signed change in data used between time = \(4\) and \(5\) hours

(b)1 mark

Read the data used when time = \(5\) hours

(c)1 mark

Classify the reading at time = \(5\) hours as interpolation or extrapolation