Answer: Function, not a function, Function, not a function
Step-by-step explanation:
For it to be a function, each value of x has to map onto one value of y.
- This is a function.
- Not a function since x=-1 has more than one y value.
- This is a function
- Not a function since x=-6 has more than one y value.
Expand the right side:


Notice that 98 = 2 * 7 * 7, so we have
and
.
Then

and

I think that a linear equation can have no solution, one solution, or infinitely solutions. It just depends on what is the equation. That's what I think
X² = 16
x = ±√16
x = <span>±4
</span>The roots of this equation are -4 and 4
<span>Сorrect answer is third from above</span>
1 to 4
Step-by-step explanation: