Curve and line

The equation of a curve C is y=2x² -8x+9, and the equation of a line L is x+ y=3 (1) Find the x coordinates of the points of intersection of L and C. (2) Show that one of these points is also the stationary point of C?

Correct answer:

a1 =  2
a2 =  1.5
b =  2

Step-by-step explanation:


Our quadratic equation calculator calculates it.


4b-8 = 0


4·b-8 = 0

4b = 8


b = 8/4 = 2

b = 2

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