The line given by the equation y=5x+2 is perpendicular to the line given by which of the equations below?
2 answers:
D
the equation of a line in slope-intercept form is
y = mx + c ( m is the slope and c the y-intercept )
y = 5x + 2 is in this form with m = 5
Given a line with slope m then the slope of a line perpendicular to it is
perpendicular slope = - = -
the only equation from the list with this slope is equation D
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Tan is opposite over adjacent.
Square roots cannot be on the bottom.
The bottom cancel out the square root bar.
Your answer is:
(It's best to memorize the 30-60-90 and the 45-45-90 triangles during trigonometry. It helps a lot.)
Hope this helps!
:)