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noname [10]
3 years ago
11

If the equation is 0.90•r=s Is it proportional?

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
4 0

\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] \rule{34em}{0.25pt}\\\\ \stackrel{\textit{\underline{s} is directly proportional to \underline{r}}}{0.90r=s}\qquad \qquad \qquad 0.90\impliedby \textit{constant of variation}

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What is the slope and y intercept of -2x +3y=-9
attashe74 [19]

Answer:

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Step-by-step explanation:

Rearrange the equation to slope-intercept form (y = mx + b).

x and y are points on the graph.

m is the slope.

b is the y-intercept.

Isolate "y". This means separating it from the other numbers.

-2x +3y = -9

-2x + 2x +3y = -9 + 2x    Add 2x to both sides

3y = 2x - 9

3y/3 = 2x/3 - 9/3      Divide both sides by 3

y = 2x/3 - 9/3      Simplify

y = (2/3)x - 3

Think about which numbers and "m" and "b" now that the equation is in y = mx + b. Include the plus and minus signs.

m = 2/3

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3 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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