We have inverse proportion
Inverse proportion occurs when one value increases and the other decreases.
More workers on a job would reduce the time to complete the task. They are inversely proportional.
2w ----------------------- 7h
3w ----------------------- xh
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(+) (-) ⇒ 2\3 = x\7 ⇒ x = 2·7/3=14/3 =12/3+2/3 =
= 4h + (2·60/3) min = 4h +40min
First find slope.
slope=change in y/change in x (y2-y1/x2-x1)
slope=4-3/-2-(-4)=1/2
Now we need to find the x intercept.
y=mx+b
3=1/2(-4)+b
b=5
So the equation is y=1/2x+5.
the answer is b 1/3 because the variable you need to simplify it
4a^2-12b=
<u>4(a^2-3b)
</u>
multiply 4 with the parenthesis, and you can see it will be 4a^2-12b<u>
</u>