Question

answer all....................​

Answer 1

$\bf \star 1)\: the \: \: degree \: \: of \: \: constant \: \: polynomial \: \: is \: \: \underline{zero \: (0) \: } \\ \\ \bf \star2) \:number \: \: of \: \: zeroes \: \: the \: \: \: polynomial \: represented \: \: by \: \: graph \: \: is \: \underline {4 \: \: because \: \: 4 \: \: points \: \: where \: \: lies \: \: on \: \: x \: axis \: \: }$

$\bf \star 3)\:(x = \sqrt{3} )(x = - \sqrt{3} ) \\ \bf \: (x - \sqrt{3} )(x + \sqrt{3} ) = {x}^{2} + x \sqrt{3} - x \sqrt{3} - 3 = {x}^{2} - 3$

$\bf \star 4)\:a = 1 \: \: \: \: \: \: \: b = 0 \: \: \: \: \: \: \: c = - 3 \\ \bf \: \alpha + \beta = \frac{ - b}{a} = \frac{ - 0}{1} = 0 \\ \bf \: \alpha \beta = \frac{c}{a} = \frac{ - 3}{1} = - 3$

$\bf \star 5)\:a = 1 \: \: \: \: \: \: \: b = 4 \: \: \: \: \: \: \: \: c = 1 \: \: \: \: \: \: \: \: \: d = - 6 \\ \bf \: \alpha \beta \gamma = \frac{ - d}{a} = \frac{ - 6}{1} = - 6$

$\bf \star \:6)f(x) = 3x - 2 \\ \bf \: 3x - 2 = 0 \\ \bf \: x = \frac{2}{3}$

$\bf \star \:7)ax + b \: \: represents \: \: \: \underline{linear} \: \: polynomial$

$\bf \star \:8) {x}^{15} - 1 = {0}^{15} - 1 = - 1$

$\bf \star \:9)both \: \: are \: \: negative \: \: so \: \: it \: \: is \: \: in \: \underline{third \: \: quadrant} \:$

$\bf \star \:10)2x + 6 = 18 \\ \bf \: 2x = 12 \\ \bf \: x = 6$

$\bf \star \:11) \: the \: \: equation \: \: x - 4y = 5 \: \: has \: \underline{infinite} \: \: solution$

$\bf \star \:12)infinite \\ \\\bf \star \:13)no \: \: solution \\ \\\bf \star \:14)coincident \\ \\ \bf \star \:15)standard \: \: equation \: \: of \: linear \: \: equation \: \: in \: \: two \: \: variable \: \: is \: \underline{ {ax}^{2} + bx + c = 0}$

$\bf \star \:16) \frac{5}{1} + \frac{3}{y} = 6 \\ \bf \: \frac{5y + 3}{y} = 6 \\ \bf \: 6y - 5y = 3 \\ \bf \: y = 3$

$\bf \star \:17)tsa \: of \: cone \: \: is \: \underline{\pi \: rl + \pi {r}^{2} }$

$\bf \star \:18)slant \: height \\ \\ \bf \star \:19)cone \\ \\ \bf \star \:20)tsa \: \: of \: \: hemisphere \: \: = 3\pi {r}^{2} = 3 \times \frac{22}{7} \times 3.5 \times 3.5 = 115.5 \: cm$

Answer 2

$\blue{\bold{\underline{\underline{Answer1:-}}}}$

• The constant term of a polynomial is the term of degree 0; it is the term in which the variable does not appear.

$\blue{\bold{\underline{\underline{Answer2:-}}}}$

• the number of zeroes is four in the graph