8
algebra

Write the equation of the line passing through the origin with slope 4.

A

y=4xy = 4x

B

y=x+4y = x + 4

C

y=4y = 4

D

x=4x = 4

Correct Answer: A

Choice A is the correct answer. Origin intercept.

  1. Intercept: Origin →b=0\rightarrow b = 0.
  2. Slope: m=4m = 4.
  3. Equation: y=4xy = 4x.

💡 Strategic Tip: Direct variation.

Choice B is incorrect because intercept is 4. Choice C is incorrect because slope is 0. Choice D is incorrect because vertical.

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Linear Functions Set 87