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Which side the \(x\)’s go on is up to you and will probably vary with the problem.
The y intercept in this problem is -4, so my first dot on the graph went at -4. So you guys these are like super fast problems if you can get the hang of it. First thing, dot at the y intercept boom, from there count the slope boom, third thing draw the line, forth thing, put the arrows on it.
Those are really great problems you guys I think you might even have fun doing your Math homework.
We’ll start off the solving portion of this chapter by solving linear equations.
A linear equation is any equation that can be written in the form \[ax b = 0\] where \(a\) and \(b\) are real numbers and \(x\) is a variable.
This is done simply because it is often easy to lose track of the minus sign on the coefficient and so if we make sure it is positive we won’t need to worry about it.
So, for our case this will mean adding 4\(x\) to both sides and subtracting 15 from both sides.
MA, Stanford University Teaching in the San Francisco Bay Area Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts To graph the equation of a line written in slope-intercept (y=mx b) form, start by plotting the y-intercept, which is the b value.
The y-intercept is where the line will cross the y-axis, so count up or down on the y-axis the number of units indicated by the b value.
These facts form the basis of almost all the solving techniques that we’ll be looking at in this chapter so it’s very important that you know them and don’t forget about them. What we do to one side of an equation we have to do to the other side of the equation.
If you remember that then you will always get these facts correct.