Question

application of parabola bridges a bridge is parallel in shape is for showing figureA parabola is the graph that results from plx)=ax2+bx+c Parabolas are symmetric about a
vertical line known as the Axis of Symmetry. The Axis of Symmetry runs through the maximum
or minimum point of the parabola which is called the vertex.
a) No. of zeroes of quadratic equation according to graph
(i) 2
(ii) 1
(iii) 3 (iv) 4
b) If No. of zeroes of quadratic equation are -1 and -5 its equation will be
(i) x2+6x-51 (ii) x2 -4x+3 (iii) x2+4x+3 (iv) x2+6x+5
c) If the equation of parabola is 2x2-3x+5 its sum of zeroes is
(i) 3/2
(ii) 3/5 (iii) -2/3 (iv) -5/3
d) If the equation of parabola is 2x2 -3x+5 its product of zeroes is
X (1) 2/5
(ii) 3/5 (iii) 5/2 (iv) 5/3
e) If the zeroes of polynomial according to the graph are -5 and -1 equation of axis of
parabola is
(i) -1
(ii) -3
(iii) -5 (iv) 0​

Answer 1

Answer:

a)2

b)x²+6x+5

c)3/2

d)5/2

e) figure is not given so,i can't answer the question