(a) Complete the table of values for \(y = x^2 + x - 4\)
\(x\)
−3
−2
−1
0
1
2
\(y\)
2
−4
(2)
(b) On the grid, draw the graph of \(y = x^2 + x - 4\) for values of \(x\) from \(-3\) to 2(2)
(c) Write down the coordinates of the turning point of the graph of \(y = x^2 + x - 4\) (1)
Mark scheme (a)
Answer
Mark
Mark scheme
\((2), -2, (-4), -4, -2, 2\)
B2
for all 4 values correct
(B1
for 2 or 3 correct values)
Mark scheme (b)
Answer
Mark
Mark scheme
Graph drawn
B2
for a fully correct graph
(B1
ft (dep on B1 in (a)) for plotting at least 5 of the points from their table correctly)
Additional guidance
Accept a freehand curve drawn that is not made of line segments Curve must not have a horizontal segment between \((-1, -4)\) and \((0, -4)\) Ignore anything drawn outside the required range
Mark scheme (c)
Answer
Mark
Mark scheme
\(-0.5, -4.25\)
B1
ft their graph with a single turning point or for \(x\) coordinate \(= -0.5\) and \(y\) coordinate \(= -4.25\) oe
