Predict with Lines of Best Fit

Daniel Math Academy · Grade 8 Math

Predict with Lines of Best Fit

Skill O.2 · Scatter plots & two-way tables · ★★☆ Medium · Quarter 3

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Use the line of best fit to answer each question.

1. 1
   The line of best fit for minutes of practice ($x$) and words typed per minute ($y$) is $y=4.4x+34$. Predict $y$ when $x=13$.
2. 2
   The line of best fit for hours studied ($x$) and test score ($y$) is $y=2.9x+32$. Predict $y$ when $x=14$.
3. 3
   The line of best fit for minutes of practice ($x$) and words typed per minute ($y$) is $y=3.9x+12$. Predict $y$ when $x=13$.

Daniel Math Academy · Grade 8 Math

Answer Key

O.2 Predict with Lines of Best Fit · ★★☆ Medium

1. 1$91.2$
2. 2$72.6$
3. 3$62.7$