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Help with providing 2 more points on the line #11

Help With Providing 2 More Points On The Line 11 class=

Sagot :

11. The slope of the line is -3. If we want another two points, we need the equation of the line.

Use the following formula:

y - yo = m(x - xo)

m is the slope of the line and (xo,yo) is any point on the line. Use (xo,yo) = (5,-2) and m=-3 and solve for y, as follow:

y - (-2) = -3(x - 5)

y + 2 = -3x + 15

y = -3x + 15 - 2

y = -3x + 13

Now, replace any two values of x, for example x= 1 and x=3:

y = -3(1) + 13 = -3 + 13 = 10

y = -3(3) + 13 = -9 + 13 = 4

Then, you can conclude that (1,10) and (3,4)