Graphs of Linear Equations (G9)
question 1 of 1
Grade: Nine - G9
Q: A function f is defined by f: x → 5 - 2x. Find the range for the domain {-2, 1, 0}.
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Did You Know?
From first equation, x = 1 + 2y. Substitute into second: 2(1 + 2y) - 3y = 4 => 2 + 4y - 3y = 4 => 2 + y = 4 => y = 2. Then x = 1 + 2*2 = 5. So solution is x = 5, y = 2.
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