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devlian [24]
2 years ago
14

Write an equation in slope-intercept form for the line that passes through (0, –2) and is perpendicular to the graph of y = −¼ x

+ 3
Mathematics
1 answer:
jarptica [38.1K]2 years ago
8 0

Given:

A line passes through the point (0,2) and is perpendicular to the graph of y=-\dfrac{1}{4}x+3.

To find:

The slope intercept form of the given line.

Solution:

Slope intercept form of a line is

y=mx+b

Where, m is slope and b is y-intercept.

We have,

y=-\dfrac{1}{4}x+3

Here, the slope of the line is -\dfrac{1}{4}.

The product of slopes of two perpendicular lines is -1.

-\dfrac{1}{4}\times m=-1

m=4

The slope of the required line is m=4 and it passes through the point (0,2). So, the equation of the required line is

y-y_1=m(x-x_1)

y-2=4(x-0)

y-2=4x

y=4x+2

Therefore, the equation of the required line is y=4x+2.

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Describe the error in the subtraction shown below ​
Gemiola [76]

Answer:

-11x+12

Step-by-step explanation:

(x^2-4x+3)-(x^2+7x-9)

x^2-x^2-4x-7x+3-(-9)

-11x+3+9

-11x+12

8 0
2 years ago
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Which is larger 1:40 or 1:60
agasfer [191]
1:40.

1:40 is equal to 1/40, while 1:60 is equal to 1/60.

1/40 is the bigger fraction, so 1:40 is the correct answer.
3 0
3 years ago
I need help I don't really understand this
pantera1 [17]
The perimeters of both are equal.
The side of the square is 12.
Therefore, its area equals to : 12² = 144

The rectangle base is 19.
Because it has the same perimeter as the square's, so rectangle perimeter is : 19 + 19 + side + side = 12 + 12 + 12 + 12
= 38 + 2side = 48
= 2side = 48 - 38
= side of rectangle = 5
Therefore, its area is 19 x 5 = 95

If you subtract it from the area of the square, you will get : 144 - 95 = 49.
So the answer is : the area of the square is 49 units largee than the area of the square (C)
8 0
3 years ago
I’m stuck... any one able to help?<br> X^4 + 5x^3 + 3x/x
Leni [432]

Answer:

x^3+5x^2+3x

Step-by-step explanation:

1) divide each term in the numerator by the term in denominator:

(remember when dividing subtract the smaller exponent from larger exponent

for example: \frac{x^a}{x^b} say a is the larger exponent, do x^a^-^b

x^4/x=x^3

5x^3/x=5x^2

3x^2/x=3x

so

x^3+5x^2+3x

hope this helps!

6 0
3 years ago
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(Multiple Choice, 20 pts)
ivanzaharov [21]

Answer:

x = -3, x = 0 is a extraneous solution

Step-by-step explanation:

Step 1: Cross-multiply

3x² = 4x² + 3x

Step 2: Isolate <em>x</em>'s

0 = x² + 3x

Step 3: Factor

0 = x(x + 3)

Step 4: Find roots

x = 0, -3

Step 5: Double check work

Plug in both to see if they both work. Only x = 0 should be extraneous. We now have our answer!

3 0
3 years ago
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