3 years ago

-.25z=-1.25 What is Z?

Mathematics

1 answer:

zaharov [31]3 years ago

5 0

Answer:

z=5

Step-by-step explanation:

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What is the constant of variation, k, of the direction variation, y = kx, through (-3, 2)

Bond [772]

$\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{x}{-3},\stackrel{y}{2})\textit{ we also know that }
\begin{cases}
x=-3\\
y=2
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Mark stated that the slope of the line that passes through these two points (1, -19) and (-2, -7) is -¼. Is Mark correct? Explai

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Answer:

Step-by-step explanation:

The slope formula is ...

m = (y2 -y1)/(x2 -x1)

We can use the values ...

(x1, y1) = (1, -19)

(x2, y2) = (-2, -7)