Mathematics, 22.11.2019 12:31 pearlvldz
If the point (2, -10) lies on the graph of a direct variation, which represents the direct variation equation?
a: y = -20x b: y = -5x c: y = -20/x d: y = -5/x
Answers: 1
![\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] ~\dotfill\\\\ (\stackrel{x}{2},\stackrel{y}{-10})~~ \textit{we know } \begin{cases} x=2\\ y=-10 \end{cases}\implies -10=k2\implies \cfrac{-10}{2}=k\implies -5=k \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill y=-5x~\hfill](/tpl/images/0386/3696/27813.png)
Another question on Mathematics
Mathematics, 21.06.2019 15:30
Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is
Answers: 2
Mathematics, 21.06.2019 16:00
Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check
Answers: 2
Mathematics, 21.06.2019 17:20
Which system of linear inequalities is represented by the graph? + l tv x-3y > 6 and y > 2x o x + 3y > 6 and y o x-3y > 6 and y> 2x o x + 3y > 6 and y > 2x + 4 la +
Answers: 1
Mathematics, 21.06.2019 21:50
Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d
Answers: 1
You know the right answer?
If the point (2, -10) lies on the graph of a direct variation, which represents the direct variation...
Questions
Mathematics, 24.03.2021 23:50
Mathematics, 24.03.2021 23:50
Social Studies, 24.03.2021 23:50
English, 24.03.2021 23:50
English, 24.03.2021 23:50
Mathematics, 24.03.2021 23:50
English, 24.03.2021 23:50
History, 24.03.2021 23:50
Chemistry, 24.03.2021 23:50
History, 24.03.2021 23:50
