(1,2)(5,8) point slope form

Mathematics

1 answer:

Ainat [17]2 years ago

3 0

9514 1404 393

Answer:

y -2 = 3/2(x -1)

Step-by-step explanation:

The slope formula tells you the slope:

m = (y2 -y1)/(x2 -x1)

m = (8 -2)/(5 -1) = 6/4 = 3/2

Using the first point in the point-slope form ...

y -k = m(x -h) . . . . . line through (h, k) with slope m

y -2 = 3/2(x -1)

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Solve the system of equations by graphing.

valentinak56 [21]

The answer is A.

The way you know this is by graphing the first function.

The second function is in a different format, so you just have to isolate Y.

-1/3x + y = -1
y= 1/3x -1 OR y= -1 + 1/3x

both of the functions have the same slope, but different y-intercepts. therefore, they'll never touch. making them infinite solutions.

it's also A because both of the slopes are positive, the slopes in graph D are negative.

So, the answer is A.

Hope this helps! xx

4 0

3 years ago

A circle has an area of 256 square inches. If the radius of

RSB [31]

Answer:

Option C (4096π in²)

Step-by-step explanation:

Area of the circle = 256π in²

We know that $Area=\pi r^{2}$ , where r = radius of the circle