$\bf -7x-2y=4\implies -2y=7x+4\implies y=\cfrac{7x+4}{-2}\implies y=\cfrac{7x}{-2}+\cfrac{4}{-2} \\\\\\ y=\stackrel{\stackrel{m}{\downarrow }}{-\cfrac{7}{2}} x-2\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \\\\[-0.35em] ~\dotfill$

$\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-\cfrac{7}{2}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{2}{7}}\qquad \stackrel{negative~reciprocal}{\cfrac{2}{7}}}$

now, what's the slope of a line parallel to that one above? well, parallel lines have exactly the same slope.

5 0

2 years ago

Solve for x: 2-3(2x-1)=-6x+5

horrorfan [7]

Answer:

x=-1

Step-by-step explanation:

1.) 2-3(2x-1)=-6x+5

2.) -1(-2x-1)=-6+5

3.) (2x+1)=-6+5

4.) (2x+1)=-1

5.) 2x=-2

6.) x=-1

3 0

2 years ago

Devon took a total of 4pages of notes during 2 hours of class at this rate how many hours will devon have to spend in class befo

AfilCa [17]

Answer:

Step-by-step explanation:

6 0

2 years ago

Pls help me thank you

Zigmanuir [339]

The probability is 3/10 however I can’t see the answer choices. If you need an explanation let me know. Good luck

4 0

2 years ago