Find the solution set for the equation, given the replacement set.

y = –7x + 9; {(7, –25), (5, –26), (6, –23), (4, –28)}
a.
{(5, –26)}
c.
{(7, –25)}
b.
{(4, –28)}
d.
{(6, –23)}

  a.  {(5, –26)}

Step-by-step explanation:

Of the given points, the only one on the line is (5, -26). This can be confirmed by substituting the values and doing the arithmetic:

A. -7(5)+9 = -26

B. -7(4) +9 = -19 ≠ -28

C. -7(7)+9 = -40 ≠ -25

D. -7(6)+9 = -33 ≠ -23

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