Solving Quadratic Systems Graphically?
Solve the following systems by graphing on your calculator or a website and give the solution
Then show how the solutions would be verified, by using the LEFT SIDE = RIGHT SIDE method
y=2x^2 + 7x − 5
y=−1/3^2 − 2x + 9
- PuzzlingLv 73 months ago
The second equation wouldn't be a quadratic unless it included an x² term.
The intended equations seem to be:
y = 2x² + 7x - 5
y = (-1/3)x² - 2x + 9
To solve this graphically, graph both equations on the same paper. Then look for the intersection point(s).
I've done that using a website in the link below.Source(s): https://www.desmos.com/calculator/m2h9dzzjhf
- JimLv 73 months ago
Quadradic Equation solution for f(x) or y = ax² +bx + c is:
x = -b/2a +-√(b² -4ac)/2a
I like this 'form' since it shows the Vertex offset by "both sides"
Note: your formulas might be incorrect (the second equation).