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quick qgiven 2x+3y=12, what is the slope, y intercept, and what would the graph look like is the slope??? m= -3 y int: b= 6 any help? thanks |

Re: quick qThe slope and y intercept are most easily identified when the equation is in "slope intercept form" y=mx + b |

Re: quick qQuote:
Then you know the y-intercept and the slope. So, we have the equation: Subtracting 2x from both sides gives: Then dividing both sides (meaning the whole of both sides) by 3 gives: this becomes, by basic rules of fractions, the following: This is in the form: So, and This graph would look like a line, slanted from top left to bottom right, intersecting the y-axis at four. Basically draw a point at (0, 4) and move down two [-2 in the slope, m] and to the right 3 [+3 in the slope, m] to find your next point. Continue this to get a picture of the graph, in both directions. Hope this helps, anymore questions post them here and I'll try to clarify. |

Re: quick qHello, bignick79! Quote:
Get the equation into the form:[color=beige] .[/color] [color=beige]. . [/color]That is, solve for [color=beige]. . . [/color] [color=beige]. .[/color] [color=beige]. . . . . . . . . . . . . . . . . . [/color][color=beige] - - [/color] [color=beige]. . . . . . . . . . . . . . . . [/color]slope[color=beige] . [/color]y-intercept ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ This line has a y-intercept at [color=beige]. . [/color] Code: ` |` |

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