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Goldfinger2001
- Senior | Next Rank: 100 Posts
- Posts: 50
- Joined: Mon Jan 03, 2011 9:22 am
Hi,
where am I wrong?
Statement1: slope is 3times bigger than y-intercept y=mx+b -> y=3bx + b
Statement 2: x intercept is -1/3
combine both -> -b/3b = -1/3
b=1 -> y intercept = 1 ?
in statement (2) you have x intercept=-1/3 which means when y=0 you have y=-1/3*a+b {y=ax+b <-- equation of line} where a is slope and b is y-intercept, so rewriting gives you 0=-1/3*a+b OR b=a/3 which is the same as statement (1)
