Answer:

Step-by-step explanation:
Hope this helps.
Answer:
Domain : R
Range : R
Step-by-step explanation:
The given function is
or it can be written as y = 15x.
So, the function is valid for all real values of x and we will get the real value of y for each real value od x.
Hence, all the real numbers or R is the domain of the function.
And all the real numbers or R is the range of the given function. (Answer)
The given quadratic expression; 5b² -6b -2 is prime because the discriminant is not a perfect square.
<h3>
What is the discriminant of the expression?</h3>
According to the task content; it is required to identify if the expression is prime.
On this note, it follows that the discriminant of the expression can be evaluated as follows;
= 36 -(4× 5 × -2)
= 76.
Hence, the expression is prime since 76 is not a perfect square.
Read more on discriminant;
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Answer:
{(2, 1)}
Step-by-step explanation:
The graph shows the only solution to be the point (2, 1). Hence the solution set will be a set containing one element—that point:
{(2, 1)}