Question

Which functions are linear? Responses A y = 8x2 − 2y = 8 x 2 − 2 B y = 12 x + 8y = 1 2 x + 8 C y = 2x − 4y = 2x − 4 D y = 3x + 2y = 3 x + 2 E y = x − 2y = x − 2

Answer 1

• B, C, D, E

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Linear function has a form of:

• y = mx + b

From the given options we can choose linear functions:

• B) y = 12x + 8;
• C) y = 2x − 4;
• D) y = 3x + 2;
• E) y = x − 2.