Monday

October 20, 2014

October 20, 2014

Posted by **Jack** on Wednesday, January 9, 2008 at 6:43pm.

- Algebra -
**Damon**, Wednesday, January 9, 2008 at 6:58pmy = m x + b will graph as a straight line. Try graphing it to see what m and b mean.

First make a mark at x = 0 and y = b. That is point (0,b) and is called the y axis intercept. That is what the b means.

Now from that point go right one unit in x and up m units in y.

That is another point on the line (1, b+m)

That is what slope, m , means. When you go right one, you go up m.

Two points determine the line, so take a ruler and draw that line through the two points. That is your graph of the equation y = m x + b.

Of course You can see right away that (0,b) lies on the line because when x = 0

y = 0 + b

but that second point has to be shown.

(1, b+m)

put it in the equation

y = m x + b

b + m = m (1) + b ? sure enough

**Answer this Question**

**Related Questions**

Logic - I'm having a lot of trouble grasping the concept of 'begging the ...

English - My 1st grade son needs to write a paragraph but is having a very hard ...

social science - Can someone give me like a short five sentence paragraph on ...

Elmentary math - Can someone please help me explaim this question to one of my ...

Algebra 1 Concept Explaination - Can anyone thoroughly explain how to graph ...

algebra - Will someone please look over these? I am so lost on these. 1. find ...

math - Can someone start me off on these and please explain step by step how you...

Vectors - Can someone start me off on these and please explain step by step how ...

Math /Algebra - I was challenged with this question: Explain why the formula for...

algebra - 1. Explain the concept of modeling. How does a model describe known ...