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4 years ago

A line that is perpendicular to y = -1 is a vertical line. Vertical lines have an undefined slope. True False

Mathematics

1 answer:

Anit [1.1K]4 years ago

8 0

Answer:

True

Step-by-step explanation:

Horizontal lines with equation y = c where c is the value of the y- coordinates the line passes through are parallel to the x- axis and have a slope of zero.

Vertical lines with equation x = c where c is the value of the x- coordinates the line passes through are parallel to the y- axis and have an undefined slope.

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Find the distance between these points. C(0, 4), T(-6, -3) √(37) √(109) √(85)

finlep [7]

Answer:

The answer is

Step-by-step explanation:

The distance between two points can be found by using the formula

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

C(0, 4), T(-6, -3)

The distance between them is

We have the final answer as

Hope this helps you

6 0

3 years ago

James says that: 3(2x * 3) = 5x + 9 what value of x would prove this?

Galina-37 [17]

Answer:

x=1

Step-by-step explanation:

6x•9=5x+9

x•9=9

3 0

3 years ago

Find the coordinates of the circumcenter for ∆DEF with coordinates D(1,3) E (8,3) and F(1,-5).

NemiM [27]

Let the coordinates of the circumcentre O of the triangle DEF be (x, y). Circumcentre of a triangle is equidistant from each of the vertices.

1. Distance OD=distance OE, then:

$(x-1)^2+(y-3)^2=(x-8)^2+(y-3)^2$ .

2. Distance OD=distance OE, then:

$(x-1)^2+(y-3)^2=(x-1)^2+(y+5)^2$ .

Solve the system:

$\left\{\begin{array}{l} (x-1)^2+(y-3)^2=(x-8)^2+(y-3)^2 \\ (x-1)^2+(y-3)^2=(x-1)^2+(y+5)^2 \end{array}\right.$ ,

$\left\{\begin{array}{l} x^2-2x+1+y^2-6y+9=x^2-16x+64+y^2-6y+9 \\ x^2-2x+1+y^2-6y+9=x^2-2x+1+y^2+10y+25 \end{array}\right.$ ,

$\left\{\begin{array}{l} 14x=63 \\ -16y=16 \end{array}\right.$ .

Then

$x=\dfrac{63}{14} =\dfrac{9}{2} =4.5,\\ \\ y=-1$ .

Answer: the coordinates of the circumcenter for ∆DEF are x=4.5, y=-1.

5 0

4 years ago

a scale drawing of an automobile has a scale of 1 inch=1/2. foot. the actual width of the car is 8 feet what is the width on the

Tatiana [17]

The width of the scale drawing would be 16 inches. You need to convert the 1/2 ft to inches. Then figure out that 96in is equal to 8 ft. Then you divide 96 by 6.

8 0

4 years ago

First gets brainliest. Mr.John doe was figuring out his federal income tax. His income was $26800 but he was able to subtract $5

Alja [10]

Answer: His taxable income: 26,800 - 5,500 = 21,300

15% of his taxable income: 21,300 * 0.15 = 3,195

Step-by-step explanation:

8 0

3 years ago