a) using a graphical method, solve the following simultaneous equations:4u + 2y = 53u + y = 9b)...

Question

a) using a graphical method, solve the following simultaneous equations:

4u + 2y = 5
3u + y = 9

b) using a graphical method, solve the following quadratic equation:

2x^2 + 6x + 3 = 0

Given that the solution lies in the range x = -4 and x = 0

Robert · Accepted Answer

a) Using a graphical method, solve the following simultaneous equations:
4u + 2y = 5 
3u + y = 9
To plot line 4u + 2y = 5 : 
       
 
 
 
Slope = -2 
y-intercept = 2.5 
Using Rise-over-run method, we can get the two points(marked in red) and draw the 
line through it (marked in blue).

a) using a graphical method, solve the following simultaneous equations: 4u + 2y = 5 3u + y = 9 b) using a graphical method, solve the following quadratic equation: 2x^2 + 6x + 3 = 0 Given that the...

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