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Grade 8 Algebra: Slope from Tables

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Level 3

Constant rates and missing values

  1. 1. Is the rate of change constant? If so, find it:
    x0123y14916\begin{array}{c|cccc} x & 0 & 1 & 2 & 3 \\ \hline y & 1 & 4 & 9 & 16 \end{array}
  2. 2. Is the rate of change constant? If so, find it:
    x0123y6666\begin{array}{c|cccc} x & 0 & 1 & 2 & 3 \\ \hline y & 6 & 6 & 6 & 6 \end{array}
  3. 3. Is the rate of change constant? If so, find it:
    x25811y1357\begin{array}{c|cccc} x & 2 & 5 & 8 & 11 \\ \hline y & 1 & 3 & 5 & 7 \end{array}
  4. 4. Is the rate of change constant? If so, find it:
    x1245y35911\begin{array}{c|cccc} x & 1 & 2 & 4 & 5 \\ \hline y & 3 & 5 & 9 & 11 \end{array}
  5. 5. Is the rate of change constant? If so, find it:
    x0123y1248\begin{array}{c|cccc} x & 0 & 1 & 2 & 3 \\ \hline y & 1 & 2 & 4 & 8 \end{array}
  6. 6. Find the missing value (constant rate):
    x0123y27?17\begin{array}{c|cccc} x & 0 & 1 & 2 & 3 \\ \hline y & 2 & 7 & ? & 17 \end{array}
  7. 7. Find the missing value (constant rate):
    x1234y20?105\begin{array}{c|cccc} x & 1 & 2 & 3 & 4 \\ \hline y & 20 & ? & 10 & 5 \end{array}
  8. 8. Find the missing value (constant rate):
    x0246y−3?59\begin{array}{c|cccc} x & 0 & 2 & 4 & 6 \\ \hline y & -3 & ? & 5 & 9 \end{array}