Question

i will mark u brainliest... wrong answer will be reported... do atleast 3 question ​

Answer 1

1.If 1 is the zero of the polynomial f(x)=a

2

x

2

−3ax+3x−1

Then, f(x)=0

=>a

2

(1)

2

−3a(1)+3(1)−1=0

=>a

2

−3a+3−1=0

=>a

2

−3a+2=0

=>a

2

−2a−a+2=0

=>a(a−2)−1(a−2)=0

=>(a−2)(a−1)=0

a=2

2.The distance of a point from y−axis is called its x−coordinate or abscissa. ... The point of intersection of the coordinate axes is called the origin and the coordinates of origin

3.The axes intersect perpendicularly at a point.

It is called origin as all the measurement along the axes are taken from O as a reference point

4.Let point is (x,x) then, according to question (x+3)

2

+(x−4)

2

=(7)

2

x

2

+6x+9+x

2

−8x+16=49

2x

2

−2x−24=0

x

2

−x−12=0

(x−4)(x+3)=0

x=4,−3

∴ Point (4,4) or (-3,-3)