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Mathematics

Grade9

Easy

Question

The slope of the line perpendicular to $y equals 7 space x minus 4$ is _____.

$\frac{1}{7}$
7
-7
$\frac{- 1}{7}$

hint Hint:

In this question, we have to find the slope of line perpendicular to the line $y equals 7 space x minus 4$ . As we know that the equation are of the form y=mx + b, where m stands for the slope of the line and b for y intercept. As know we know the slope of the line so we can easily find the slope of the perpendicular line which will in the form $fraction numerator negative 1 over denominator m end fraction$ .

The correct answer is: $fraction numerator negative 1 over denominator 7 end fraction$

The equation of the line is $y equals 7 space x minus 4$
Where, m = 7 and b = -4
As the slope of the line given, m = 7
So, the slope of the line perpendicular to this line
$equals fraction numerator negative 1 over denominator m end fraction equals fraction numerator negative 1 over denominator 7 end fraction$

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