Math 8 Homework Help - Please Help

[AbhiKap]

Hello, AbhiKap here.

I really need help on this problem:

What is the slope of the line: x/6 - y/9=1?

I think it is 6, after converting it to y=mx+b. But I'm not sure. Can anyone help me?

Thanks, Help is appreciated.

 

[pka]

What is the slope of the line: x/6 - y/9=1?

The $\displaystyle x\text{-interrcept is }(6,0)$ and the $\displaystyle y\text{-interrcept is }(0,-9)$.

Use those two points to find the slope.

 

[AbhiKap]

Thanks for the help - please Help again

Here is another question similar to the first one:

What is the y-intercept of the graph of 3y +17 = 5?

 

[mmm4444bot]

Solve this equation for y, and the intercept will be obvious! There is no x, so the line must be horizontal, yes?

(Please start a new thread for each new exercise.)

 

[soroban]

Hello, AbhiKap!

$\displaystyle \text{Find the slope of this line: }\:\dfrac{x}{6} - \dfrac{y}{9} \:=\:1$

I think it is 6, after converting it to y = mx +b.
That is the correct procedure . . . but how did you get 6?

$\displaystyle \text{We have: }\;\dfrac{x}{6} - \dfrac{y}{9} \;=\;1$

. . . . . . . . . . .$\displaystyle -\dfrac{y}{9} \;=\;-\dfrac{x}{6} + 1$

$\displaystyle \text{Multiply by -}9\!:\;\;y \;=\;\frac{3}{2}x - 9$


$\displaystyle \text{The slope is }\dfrac{3}{2}.$