How do you find the missing value in the ordered pair (3,-2), (x,6); slope = -4?

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Answer 1 · 2016-09-06T17:44:49

#x = 5#

Proceed in the same way as if you were going to calculate the slope.

Write down the formula and substitute the values you have.

#(y_2-y_1)/(x_2-x_1) = m#

#(-2-6)/((x-3)) = (-4)/1 larr # simplify and solve for #x#

#(-8)/((x-3)) = (-4)/1#

#(-8)/(color(red)((x-3))) (div2)/(color(red)(div2)) = (-4)/color(red)(1)#

The numerators are fine, so consider only the denominators:

#color(red)((x-3)/2 = 1)#

#x-3 = 2#

#x = 5#