Question 141872: Graph the equation using the slope and y-intercept.
y = 9/4x + 7 (the 9/4 is a fraction)
HELP PLEASE
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! The y-intercept is where the graph crosses the x-axis. It is the point where x=0. If x=0, then y=7. It turns out that the number term in this type of equation is always the y-intercept. Next, find the slope, which, in this type of equation, is always the coefficient of x. The slope is 9/4.
Slope is the  . So the RISE =9, and the RUN=4.
Start by plotting the y-intercept by going UP 7 units on the y-axis, and put the FIRST point. Next, start with your pencil ON the y-intercept, and measure from this point UP a distance of 9 units (that would be a total of 16 units!), then go from there OVER 4 units to the RIGHT, and put the SECOND point. Connect the two points with a straight line, and you have the graph, which should look like this:
For a more detailed explanation, see my own website by clicking on my tutor name "rapaljer" anywhere in algebra.com. Click on the second link on my homepage, which is "Basic, Intermediate, and College Algebra: One Step at a Time." Click on Basic Algebra, and choose Chapter 4. Problems like this one will be found in Section 4.02 Slope Intercept Method. You may find my explanations easier to understand than traditional textbooks.
R^2
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