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VamLS6316
07.07.2019 •
Mathematics
Y= 2x+3 a). what is the slope of a line parallel to the given line? b). what is the slope of a line perpendicular to the given line?
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Ответ:
A standard line equation takes the form of y=mx+b
m= the slope so we see that 2 is next to x in your example
A) Slope = 2
Perpendicular lines will have the negative reciprocal of the original equation's slope
2 -> -![\frac{1}{2}](/tpl/images/0061/8999/9cdae.png)
B)![y=-\frac{1}{2} x+3](/tpl/images/0061/8999/7cf11.png)
Ответ:
8 - (25% × 8) =
8 - 25% × 8 =
(1 - 25%) × 8 =
(100% - 25%) × 8 =
75% × 8 =
75 ÷ 100 × 8 =
75 × 8 ÷ 100 =
600 ÷ 100 =
6