472° Вправа 472Алгебра 8 клас Тарасенкова 2025 · § 12 · стор. 141

472. Чи правильно, що графік функції y = x² проходить через точку:

1) ${\displaystyle A(4;2)}$: ${\displaystyle 2=}$${\displaystyle 4^2}$; ${\displaystyle 2\ne 16}$ — ні;

2) ${\displaystyle B(-2;4)}$: ${\displaystyle 4=}$${\displaystyle {(-2)}^2}$; ${\displaystyle 4=}$${\displaystyle 4}$ — так;

3) ${\displaystyle C(4;16)}$: ${\displaystyle 16=}$${\displaystyle 4^2}$; ${\displaystyle 16=}$${\displaystyle 16}$ — так;

4) ${\displaystyle D(0;4)}$: ${\displaystyle 4=}$${\displaystyle 0^2}$; ${\displaystyle 4\ne 0}$ — ні;

5) ${\displaystyle M(10;100)}$: ${\displaystyle 100=}$${\displaystyle {10}^2}$; ${\displaystyle 100=}$${\displaystyle 100}$ — так;

6) ${\displaystyle N(-8;16)}$: ${\displaystyle 16=}$${\displaystyle {(-8)}^2}$; ${\displaystyle 16\ne 64}$ — ні;

7) ${\displaystyle P(0;0)}$: ${\displaystyle 0=}$${\displaystyle 0^2}$; ${\displaystyle 0=}$${\displaystyle 0}$ — так;

8) ${\displaystyle R(-1;1)}$: ${\displaystyle 1=}$${\displaystyle {(-1)}^2}$; ${\displaystyle 1=}$${\displaystyle 1}$ — так.