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What satisfies an equation in two variables?
An ordered pair or coordinates of a point in 2-dimensional space.
How do you find a point which is equidistant from other three points?
For three points, (x1,y1), (x2,y2) & (x3,y3), you can set up 3 distance equations with variables x, y & z: z^2 = (x-x1)^2 + (y-y1)^2 z^2 = (x-x2)^2 + (y-y2)^2 z^2 = (x-x3)^2 + (y-y3)^2 3 equations and 3 variables....Solve away! z is your distance. x & y are the coordinates of the equidistant point.
How do you find a midpoint on a plot graph?
Find the two points and subtract them with X - X and Y - Y. For example: Point A: (1, 2) Point B: (3, -2) Midpoint = (-2, 0). Or you can find the middle point of the line and label the coordinates.
2 types of variables?
Qualitative and quanitative are two types of variables.
How do you write a linear equation given a point and the slope?
Hey there--I'll give you an example: Say you have a slope of 2, and the point (3,4). Knowing that the format of the equation is y=mx+b (m is the slope), and that at one point, x MUST be 3 and y MUST be 4, plug in your variables to find b: 4=2(3)+b ^ ^ ^ ^ y m,x So b= -2 The equation of the line is: y=2x-2 If you want to double check, plug in that first point (3,4) 4=2(3)-2 4=4 Yay! :) Hope this helped!
