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Arisa [49]
3 years ago
14

What is an equation in point-slope form of the line that passes through the point (6, −2) and has a slope of 3? A. y + 2 = 3(x −

6) B. y + 2 = −3(x − 4) C. y + 1 = 6(x − 4) D. y + 1 = −6(x + 4)
Mathematics
1 answer:
Nostrana [21]3 years ago
8 0

Answer:

answer A is correct because the formula of equation in point slope is

y-y1=m(x-x1)

where,(x1,y1)point is given that is (6,-2)

slope=m=3

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Which line has a slope of 5/8 and goes through the point (2,-3)?
QveST [7]

\bf (\stackrel{x_1}{2}~,~\stackrel{y_1}{-3})\qquad \qquad \qquad 
slope =  m\implies \cfrac{5}{8}
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-3)=\cfrac{5}{8}(x-2)
\\\\\\
y+3=\cfrac{5}{8}x-\cfrac{5}{4}\implies y=\cfrac{5}{8}x-\cfrac{5}{4}-3\implies y=\cfrac{5}{8}x-\cfrac{17}{4}


\bf \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{8}}{8y=5x-34}\implies -5x+8y=-34 \\\\\\ \stackrel{\textit{multiplying both sides by -1}}{5x-8y=34}\impliedby standard~form


bear in mind that in a standard form of a linear equation


the variables are both on the left side, "x" before the "y" usually.


"x" cannot have a negative coefficient.


all coefficients and constants must be integers.

6 0
3 years ago
The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. A basic solution has a
Romashka-Z-Leto [24]

Answer:

0.003981 . . . . moles per liter

Step-by-step explanation:

The concentration of H+ ions in the acid will be ...

10^(-2.4) ≈ 0.003981 . . . . moles per liter

The concentration of H+ ions in the base will be ...

10^-11.2 ≈ 0.000 000 000 006310 . . . . moles per liter

To a few decimal places, the difference is ...

0.003981 . . . . moles per liter

_____

The two numbers differ by about 9 orders of magnitude, so the value of the difference between the larger and the smaller is essentially the value of the larger number. The smaller one, by comparison, can be considered to be zero (for subtraction purposes).

8 0
4 years ago
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2 1 MLD
mash [69]
Profits = 3.009(number of pizzas) - 77.131
Profits = 3.009(275) - 77.131 = 750.344
4 0
3 years ago
Simplify 8(x + 3) - 2x.<br><br>Answer options:<br>A) 6 x + 3<br>B) 7 x<br>C) 6 x + 24​
s344n2d4d5 [400]

Answer:

C

Expand the bracets then simplfy and then factorise

4 0
3 years ago
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What is the Length Of right angle C
enyata [817]

Answer:

can't see the angle

Step-by-step explanation:

where is the angle

8 0
3 years ago
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