Question

Which is an equation of the function graphed?

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Number 4
Possible Answers

A. 8x+3y=-28
B. 8x-3y=-28
C. 3x+8y=-28
D. 3x-8y=-28

Answer 1

B. `8x-3y=-28`

Explanation:

As the line shown in the figure has a positive slope, when its equation is written in the form `ax+by=c`,

signs of the coefficients of `x` and `y` would always be opposite

hence answer is either B or D.

Further, slope of the line is steeper than `1` and hence numerical value of the coefficient of `x` should be more than that of `y`

Hence answer is B.