111.28.B.5.g Functions in different forms

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Grade 8
Mathematics
Texas Essential Knowledge and Skills (TEKS)

8.5.G: Proportionality

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Q 1/10
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Which graph represents y as a function of x?
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10 questions

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Q1
Which graph represents y as a function of x?
30s
8.5.G: Proportionality
Q2
Which graph does NOT represent y as a function of x?
30s
8.5.G: Proportionality
Q3
Which graph represents y as a function of x?
30s
8.5.G: Proportionality
Q4
Which graph does NOT represent y as a function of x?
30s
8.5.G: Proportionality
Q5
Which set of ordered pairs represents y as a function of x?
{ (1, 3), (4, 6), (3, 6), (7, 9)}
{(1, 2), (1, 3), (1, 4), (1, 6)}
{(3, 9), (4, 2), (3, -2), (5, 9)}
{(4, 1), (7, 1), (4, 2), (7, 3)}
30s
8.5.G: Proportionality
Q6
Which ordered pairs represents y as a function of x?
{(4, 6), (3, 6), (5, 6), (4, 5)}
{(0,0), (2, 4), (4, 5), (5, 7)}
{(2, 2), (4, 4), (6, 6), (4, 6)}
{(0, 0), (1, 0), (0, 1), (1, 1)}
30s
8.5.G: Proportionality
Q7
Which set of ordered pairs does NOT represent y as a function of x?
{(4, -4), (3, -3), (-2, 2), (10, -10)}
{(4, 7), (3, 6), (-5, 3), (4, 3)}
{(0, 3), (5, 3), (6, 3), (-4, 3)}
{(-2, 1), (-4, -1), (-3, 0), (5, -5)}
30s
8.5.G: Proportionality
Q8
Which representation shows y as a function of x?
30s
8.5.G: Proportionality
Q9
Which statement describes the mapping?
The mapping represents y as a function of x, because each y-value corresponds to exactly one x-value.
The mapping does not represent y as a function of c, because 2 of the x-values correspond to the same y-value.
The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.
The mapping does not represent y as a function of x, because there are more x-values that different corresponding y-values.
30s
8.5.G: Proportionality
Q10
Which representation does NOT show y as a function of x?
{(3, 2), (5, 6), (-2, 2), (-12, 5)}
30s
8.5.G: Proportionality