A line passes through the points (P, a) and (P, –a) where P and A are real numbers and P does not equal 0. Describe each of the following. Explain your reasoning. 1. slope of the line

2. equation of the line

3. y-intercept

4. slope of a line perpendicular to the given line

9514 1404 393

Step-by-step explanation:

2. The x-value of the given points is the same, so the points both lie on the vertical line ...

  x = P

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1. The slope of a vertical line is "undefined".

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3. Given that P ≠ 0, the vertical line is parallel to the y-axis, so there is no y-intercept.

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4. A line perpendicular to a vertical line will be horizontal. A horizontal line has a slope equal to zero.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.