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Olenka [21]
3 years ago
9

Write the equation in slope- intercept form of the line that has a slope of -3 and contains the point (1,1)

Mathematics
1 answer:
Tpy6a [65]3 years ago
8 0
Slope-intercept form is y = mx + b, where <em>m</em> is the slope of the line and <em>b</em> is the y-intercept.

Since we know the slope, plug it into the base equation:
y = mx + b
y = -3x + b

We don't know what <em>b</em> is, so plug the point we have into the equation:
y = -3x + b
1 = -3(1) + b
1 = -3 + b
b = 4

Now that we know <em>b</em>, input it into the partial equation:
y = -3x + b

 y = -3x + 4 is the equation of the line.
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F(x)=x^2+6x+8 in factored form
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Step-by-step explanation:

The quadratic factors into (x + 4)(x + 2) When you remove the brackets, you get

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5 0
3 years ago
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The volume of a Soap cake is 160 cm 3 . Its length and width are 10cm and 5 cm. Find its height.
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h = 3.2 cm

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h=\frac{Volume}{l * w}\\\\=\frac{160}{10*5}\\\\=\frac{16}{5}\\\\

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4 0
3 years ago
Which answer is the equation of the line represented in function notation?
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3 0
3 years ago
Complete the solution of the equation. find the value of y when equals 2. -3x-8y=10
Afina-wow [57]
The value of y can be calculated by translating the equation such that we solve y in terms of x.

                            -3x - 8y = 10
 
                               -8y = 10 + 3x
 
                               y = (10 + 3x) / -8

Then, we substitute 2 to the x in the equation.

                             y = (10 + 3(2)) / - 8  = 16/-8

                                y = -2 

Thus, the value of y in the equation is -2. 
4 0
3 years ago
Which is the equation of the given line in slope-intercept form? (-1, 2) and (1, -4)
Natalka [10]
1. Find the slope using the slope formula.
\frac{2 - ( - 4)}{ - 1 - 1}  =  \frac{2 + 4}{ - 2}  =  -  \frac{6}{2}  =  -  \frac{3}{1}  =  - 3
2. Plug that slope and either point into an equation in slope-intercept form and solve for b.
2 =  - 3( - 1) + b \\ 2 = 3 + b \\  - 1 = b
3. Now write your answer as a slope-intercept form equation
y =  - 3x - 1
6 0
3 years ago
Read 2 more answers
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