Whakaoti i te y=-1/3(x+7)^2+2

$$y = - \frac { 1 } { 3 } ( x + 7 ) ^ { 2 } + 2$$

Whakaoti mō y

$$y=-\frac{\left(x+7\right)^{2}}{3}+2$$

Ngā Upane Otinga

Whakamahia te ture huarua \left(a+b\right)^{2}=a^{2}+2ab+b^{2} hei whakaroha \left(x+7\right)^{2}.

$$y=-\frac{1}{3}\left(x^{2}+14x+49\right)+2$$

Whakamahia te āhuatanga tohatoha hei whakarea te -\frac{1}{3} ki te x^{2}+14x+49.

$$y=-\frac{1}{3}x^{2}-\frac{14}{3}x-\frac{49}{3}+2$$

Tāpirihia te -\frac{49}{3} ki te 2, ka -\frac{43}{3}.

$$y=-\frac{1}{3}x^{2}-\frac{14}{3}x-\frac{43}{3}$$

Whakaoti mō x (complex solution)

$$x=-\sqrt{6-3y}-7$$

$$x=\sqrt{6-3y}-7$$

Whakaoti mō x

$$x=-\sqrt{6-3y}-7$$

$$x=\sqrt{6-3y}-7\text{, }y\leq 2$$