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As far as one can tell the above expression looks like an equation for a line. If it is then it cannot be expressed as an ordered pair but requires an infinite number of ordered pairs!
y=(-1) x=(2)
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The ordered pair to complete is not included... To complete the ordered pair, take the given number, let's say it is (?, 3): x = ?, y = 3 Start by substituting it in for y, and solve for x y = 4 - 5x (rearranged to slope-intercept form for simplicity) 3 = 4 - 5x -1 = -5x x = 1/5 = .2 The completed pair is now: (.2, 3) For another example, let's take the given number as (8, ?), x = 8, y = ? y = 4 - 5x y = 4 - 5 x 8 y = 4 - 40 y = -36 (8, -36)
-3x + 2y = 8To get into slope intercept, we must set the equation equal to y2y = 3x + 8y = 3/2x + 8/2y = 3/2x + 4
y - 3x = 8 standard form is y = mx + b m = slope y = 3x + 8 in this form slope m is 3 The perpendicular line slope is the negative inverse of m -1/m = -1/3
y=(-1) x=(2)
Without an equality sign the given terms can't be considered to be a straight line equation.
Without any equality sign and not knowing whether or not 2 is + or they cannot be classed as equations
x = 2y - 23x - y = 143(2y - 2) - y = 146y - 6 - y = 145y - 6 = 145y = 20y = 4x = 2(4) - 2x = 8 - 2x = 6The ordered pair is (6,4).
3x-6y=-8
13
8
(9,-2)
3x² + 10x = 8 Rewrite as: 3x² + 10x - 8 = 0 The only way to get 3x² is 3x and x (3x + -- ) (x + --) The factors of 8 are {1 2 4 8} so the answers must be a pair of them. With 4 factors, and a negative sign (the -8), there are only 8 ways this can be written: (3x + 1)(x - 8) = 3x² - 23x - 8 (3x + 2)(x - 4) = 3x² -10x - 8 (almost) (3x + 4 )(x - 2) = 3x² - 8x - 8 (3x + 8)(x - 1) = 3x² +5x - 8 (3x - 1)(x + 8) = 3x² +23x - 8 (3x - 2)(x + 4) = 3x² + 10x -8 ◄ Success! (3x - 4)(x + 2) = 3x² +2x - 8 (3x - 8)(x + 1) = 3x² -5x - 8 Trial and error, error, error, is the key to this kind of problem. Seeing the -10x early can point you to see that maybe changing the signs can work. ■
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3x-4y = 8 -4y = -3x+8 y = 3/4x-2 or y = 0.75x-2 which is the equivalent in slope intercept form
Dearest one,standard form refers to making an equation in the form of y = x + c therefore y = 3x - 8 _____ 6