This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
Given that y = 7 + 3x - x2, complete the table below and draw the graph of y = 7 + 3x - x2.
Mathematics

ScanSolve AI Answer
4 stepsAnswer
7 + 3x - x^2$.
a) To complete the table, substitute each value of into the equation .
For :
For :
For :
For :
For :
For :
The completed table is:
b) To draw the graph of :
- Draw and label the x-axis and y-axis on the provided grid.
- Choose a suitable scale for both axes. For example, 1 cm to represent 1 unit on the x-axis and 1 cm to represent 2 units on the y-axis. Ensure the scale accommodates x-values from -3 to 6 and y-values from -11 to 9.
- Plot the points from the completed table: , , , , , , , , , .
- Draw a smooth curve connecting all the plotted points. This curve will be a parabola opening downwards.
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Quick Answer
a) To complete the table, substitute each value of x into the equation y = 7 + 3x - x^2.
ScanSolve AI Answer
a) To complete the table, substitute each value of x into the equation y = 7 + 3x - x^2. For x = -2: y = 7 + 3(-2) - (-2)^2 = 7 - 6 - 4 = -3 For x = -1: y = 7 + 3(-1) - (-1)^2 = 7 - 3 - 1 = 3 For x = 2: y = 7 + 3(2) - (2)^2 = 7 + 6 - 4 = 9 For x = 3: y = 7 + 3(3) - (3)^2 = 7 + 9 - 9 = 7 For x = 4: y = 7 + 3(4) - (4)^2 = 7 + 12 - 16 = 3 For x = 5: y = 7 + 3(5) - (5)^2 = 7 + 15 - 25 = -3 The completed table is: |c|c|c|c|c|c|c|c|c|c|c| x & -3 & -2 & -1 & 0 & 1 & 2 & 3 & 4 & 5 & 6 \\ y & -11 & -3 & 3 & 7 & 9 & 9 & 7 & 3 & -3 & -11 \\ b) To draw the graph of y = 7 + 3x - x^2: 1. Draw and label the x-axis and y-axis on the provided grid. 2. Choose a suitable scale for both axes. For example, 1 cm to represent 1 unit on the x-axis and 1 cm to represent 2 units on the y-axis. Ensure the scale accommodates x-values from -3 to 6 and y-values from -11 to 9. 3. Plot the points from the completed table: (-3, -11), (-2, -3), (-1, 3), (0, 7), (1, 9), (2, 9), (3, 7), (4, 3), (5, -3), (6, -11). 4. Draw a smooth curve connecting all the plotted points. This curve will be a parabola opening downwards.