Question 11 MarkThe parabola representing a quadratic polynomial $f(x)=a x^2+b x+c$ opens downward when __________.Answer$a<0$View full question & answer→
Question 21 MarkThe parabola representing a quadratic polynomial $f(x)=a x^2+b x+c$ opens upward when __________.Answer$a>0$View full question & answer→
Question 31 MarkIf the zeroes of the quadratic polynomial $a x^2+b x+c$ are both negative, then a, b and call have the __________ sign.AnswersameView full question & answer→
Question 41 MarkIf the zeroes of the quadratic polynomial $a x^2+x+a$ are equal, then a =__________.Answer$\pm \frac{1}{2}$View full question & answer→
Question 51 MarkIf the parabola represented by $f(x)=a x^2+b x+c$ cuts x-axis at two distinct points, then the polynomial $a x^2+b x+c$ has __________ real zeroes.AnswertwoView full question & answer→
Question 61 MarkIf two of the zeroes of a cubic polynomial are zero, then it does not have __________ and __________ terms.Answerlinear, constant View full question & answer→
Question 71 MarkIf a + c = b then a zero of the polynomial $a x^2+b x+c$, is __________.Answer-1View full question & answer→
Question 81 MarkIf a + b + c = 0 then a zero of the polynomial $a x^2+b x+c$ is __________.Answer1View full question & answer→
Question 91 MarkThe maximum number of zeros which a quadratic polynomial can have is __________.AnswertwoView full question & answer→
Question 101 MarkIf the product of the zeroes of the quadratic polynomial $x^2-3 a x+2 a^2-1$ is 7, then $a=$__________.Answer$\pm 2$View full question & answer→
Question 111 MarkIf $x+\alpha$ is a factor of the polynomial $2 x^2+2 \alpha x+4 x+12$ then $\alpha$= __________.Answer3View full question & answer→
Question 121 MarkQuadratic polynomials with rational coefficients having $\sqrt{3}$ as a zero are given by __________.Answer$k\left(x^2-3\right)$,where k is constant View full question & answer→
Question 131 MarkThe sum of the zeros of the quadratic polynomial $2 x^2-3 k$ is __________.AnswerzeroView full question & answer→
Question 141 MarkIf one zero of the quadratic polynomial $2 x^2-6 k x+6 x-7$ is negative of the other, then k= __________.Answer1View full question & answer→
Question 151 MarkIf $4 x^2-6 x-m$ is divisible by x - 3 then m= __________.Answer18View full question & answer→
Question 161 MarkIf-4 is a zero of the polynomial $x^2-x-(2 k+2)$, then k=__________.Answer9View full question & answer→
Question 171 MarkThe graph of a quadratic polynomial intersects the x-axis at the most at __________ points.Answer2View full question & answer→
Question 181 MarkIf x + 1 is a factor of the polynomial $2 x^3+a x^2+4 x+1$, then a =__________.Answer5View full question & answer→
Question 191 MarkThe quadratic polynomials, the sum and product of whose zeroes are 7 and 12 are given by __________.Answer$k\left(x^2-7 x+12\right)$,where k is any constant View full question & answer→
Question 201 MarkThe zeroes of the quadratic polynomial $x^2+x-6$ are __________.Answer-3,2View full question & answer→
Question 211 MarkThe number of quadratic polynomials whose zeroes are 2 and -3, is. __________.AnswerInfinitely many View full question & answer→
Question 221 MarkQuadratic polynomials, whose zeroes are - 4 and 3 are given by __________.Answer$k\left(x^2+x-12\right)$, where k is a constant View full question & answer→