the related function x^2+2x-3=0
its multiple choice the options are
1and 3
-1and-4
2 and-3
-1and 3
its multiple choice the options are
1and 3
-1and-4
2 and-3
-1and 3
-
This is a quadratic equation. Its graph is a parabola.
1) Write the equation as y=x^2+2x-3
2) Choose values for the variable x and figure out the corresponding value for y
3) Graph the point whose coordinates are (x,y) using a set of x and y coordinates
4) Repeat the steps until you get enough point to graph a parabola.
5) The values of x where the parabola crosses the x axis are the solutions
For example:
Pick x=2, and substitute it in the equation y=x^2 +2x -3. We have:
y=(2)^2 +2(2) -3 =5,we have the pair (2,5).Graph it.
Now pick x=0,then y=3. We have the point whose coordinates are (0,3). Graph it.(The y intercept)
If you are careful the graph will cross the x axis at x= -3 and x=1.These are the solutions.
1) Write the equation as y=x^2+2x-3
2) Choose values for the variable x and figure out the corresponding value for y
3) Graph the point whose coordinates are (x,y) using a set of x and y coordinates
4) Repeat the steps until you get enough point to graph a parabola.
5) The values of x where the parabola crosses the x axis are the solutions
For example:
Pick x=2, and substitute it in the equation y=x^2 +2x -3. We have:
y=(2)^2 +2(2) -3 =5,we have the pair (2,5).Graph it.
Now pick x=0,then y=3. We have the point whose coordinates are (0,3). Graph it.(The y intercept)
If you are careful the graph will cross the x axis at x= -3 and x=1.These are the solutions.