|
Question 622367: I need help with these 4 problems
I need to graph the following
x = 3y - 6
2x - y = -2
y = 2/3x + 4
y = 2
Thank you for your help.
Answer by MathTherapy(10552)   (Show Source):
You can put this solution on YOUR website! I need help with these 4 problems
I need to graph the following
x = 3y - 6
2x - y = -2
y = 2
Thank you for your help.
1) Solve each equation for y, or put in y = mx + b form
x = 3y - 6
x + 6 = 3y
Because the graph of the equation will intersect the y-axis at x = 0, and the y-intercept (b) is 2, then the graph will intersect the y-axis at coordinate point, (0, 2)
Because the graph of the equation will intersect the x-axis at y = 0, we set the y-value in the equation at 0 (zero) to get:
 ---- Isolating the variable
x = - 2 * 3, or - 6, which gives us an x-intercept coordinate point of (- 6, 0)
Now just join the points, (0, 2) and (- 6, 0), and you have your graph
I'm sure you can do the others by applying the same concept.
N.B.
Number 3 has already been solved for y, or is already in y = mx + b form
Number 4 is a horizontal line at y = 4. That's all it takes to graph this one.
Send comments and “thank-yous” to “D” at MathMadEzy@aol.com
|
|
|
| |
