2 years ago

Write an equation in point-slope form of the line that passes through the point (7,-5) with slope -1/7.

Mathematics

1 answer:

Doss [256]2 years ago

3 0

Answer:

y− y 1 = m ∗ ( x − x 1 )

Step-by-step explanation:

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Is this congruent by SSS, SAS, AAS, ASA??

sleet_krkn [62]

Answer:

sss

Step-by-step explanation:

6 0

3 years ago

Identify the vertex for the graph of y = 2x2 + 8x − 3. (2, 21) (2, 17) (−2, −11) (−2, −27)

Finger [1]

$\bf \textit{vertex of a vertical parabola, using coefficients}
\\\\
\begin{array}{lcccl}
y = & 2x^2& +8x& -3\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}
\qquad 
\left(-\cfrac{ b}{2 a}\quad ,\quad c-\cfrac{ b^2}{4 a}\right)
\\\\\\
\left( -\cfrac{8}{2(2)}~~,~~-3-\cfrac{8^2}{4(2)} \right)\implies \left( \cfrac{-8}{4}~~,~~-3-\cfrac{64}{8} \right)
\\\\\\
\left(-2~~,~~-3-8 \right)\implies (-2~~,~~-11)$