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serious [3.7K]
2 years ago
6

How do you find slope, y- intercept, slope- intercept form, and point slope form for (-10,-17) (-8,-15.7)

Mathematics
2 answers:
juin [17]2 years ago
8 0

Answer:

Slope = 0.65

y = 0.65x - 10.5

Step-by-step explanation:

Taking the points (-10,-17) and (-8,-15.7)

Slope = Change in y ÷ change in x

Change in y = -15.7 - -17 = 1.3

Change in x = -8 - -10 = 2

Slope = 1.3/2 = 0.65

Taking another point (x,y);

The slope intercept form is;

\frac{y - -17}{x - -10} = 0.65

\frac{y + 17}{x + 10} = 0.65

y + 17 = 0.65x + 6.5

y = 0.65x + 6.5 - 17

y = 0.65x - 10.5

krek1111 [17]2 years ago
7 0

Answer:

-10=x1 -17=y1

-8=x2 -15.7=y2

formula:

y2 -y1

_____ =m

x2-x1

y1=m(x1)+b

Step-by-step explanation:


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2x + 7 = 4 + x solve equation using tables
Alika [10]

Answer:

x=-3

Step-by-step explanation:

2x+7=4+x

2x-x+7=4

x+7=4

x=4-7

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7 0
3 years ago
Find the derivative of f(x) = negative 9 divided by x at x = -4. (6 points) 4 divided by 9 16 divided by 9 9 divided by 16 9 div
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Answer:

9/16

Step-by-step explanation:

f(x)=-\frac{9}{x}

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Derivative rule:

f(x)=x^{n} \\

\frac{df}{dx}=nx^{n-1}

Here, n=-1, so

\frac{df}{dx}=(-9)(-1)x^{-2} =\frac{9}{x^{2} }

Evaluating this at x=-4 gives 9/16

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3 years ago
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3 years ago
Need help on this math problem​
erik [133]

Answer:

-5, 18, \sqrt{13}

Step-by-step explanation:

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2 years ago
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lakkis [162]

Answer:

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Step-by-step explanation:

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