Posted by Chrissy on Monday, October 26, 2009 at 10:46pm.
I would do this. The straight line formula is
y = mx + b
m = 2/5 and you want the line to go through the point x=-5 and y = 2; therefore, substitute those values for x and y. I'll let you do the work but I get b = 4 and the equation then looks like this.
y = (2/5)x + 4. The problem asks for integers so multiply through by 5.
5y = 2x + 20
CHECK:
5(2) = 2(-5) + 20
10 = -10 + 20
20 = 20 so it checks.
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