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Tomtit [17]
2 years ago
6

What is the slope of a line perpendicular to the line whose equation is 5x - y = -7.

Mathematics
1 answer:
BARSIC [14]2 years ago
3 0

keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above

5x-y=-7\implies 5x-y+7=0 \\\\\\ \stackrel{\stackrel{m}{\downarrow }}{5} x+7=y\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

so a line perpendicular to that one above will have a slope of

\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{5\implies \cfrac{5}{1}} ~\hfill \stackrel{reciprocal}{\cfrac{1}{5}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{1}{5}}}

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sertanlavr [38]

Answer:

  $9,812.29

Step-by-step explanation:

The amount in Jeremy's account can be computed using the compound interest formula.

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<h3>account value</h3>

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<h3>formula application</h3>

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5 0
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Find the slant height of a cone with surface area 282.74 ft2 and diameter 10 ft.
ELEN [110]

The formula for the surface area of cone is:

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3 years ago
The sum of nine and three times a number is 57 find the number and write an equation
Temka [501]
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3 years ago
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MrRissso [65]

Answer:

x = 14

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Step-by-step explanation:

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Add like terms

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7 0
3 years ago
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