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Students are supposed to use Excel (or similar) to find the answers (e.g., enter coordinates of two points then plot and add trendline).

Uses an embedded Geogebra graph of a line $y=mx+c$ with random coefficients set by NUMBAS.

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Considering the above straight line, answer the following questions:

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Use relevant formulas (e.g., $m=\\frac{y_2-y_1}{x_2-x_1}$ for slope) or spreadsheet functions (e.g., SLOPE/INTERCEPT).

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What is the slope?

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What is the intercept?

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What is $y$ when $x=\\var{x1}$?

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What is $x$ when $y=\\var{y2}$?

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