y = 3x - 10
2006-09-02 10:18:45 · 3 answers · asked by Doug 2 in Education & Reference ➔ Homework Help
Can't be
in the form "y = mx + b"
the slope is "m"
y = -4x + b
3 = -4*2 + b
11 = b
QED
2006-09-02 10:22:04 · answer #1 · answered by Gemelli2 5 · 1⤊ 0⤋
You need to use the point-slope equation; (y - y1) = m(x - x1).
Substitute -4 for m, 3 for y1 and 2 for x1.
That gives;
y - 3 = -4(x - 2)
y - 3 = -4x + 8
y = -4x + 11
2006-09-02 17:25:46 · answer #2 · answered by puhpaul 3 · 2⤊ 0⤋
the standard slope form is y=mx+b, where m is the slope. in this case its -4....input your values into the equation and you get
3 = (-4*2) + b
3 = -8 + b
11 = b
so the equation would be y=-4x+11
2006-09-02 17:24:52 · answer #3 · answered by cinquefoil_solis 3 · 1⤊ 0⤋