Question

What is the domain of this function?
(5, 14)
(0,5)
(-20, 18)
(7, 7)

Answer 1

The question wants us to find the y-intercept for the following function:

$f(x)=x^4+3x^3-2x+7$

To find the y-intercept, we just need to evaluate the function on the y-axis( x = 0). Doing the evaluation:

$\begin{gathered} f(0)=0^4+3\times0^3-2^{}\times0+7=7^{} \\ \Rightarrow f(0)=7 \end{gathered}$

With this, we find that the function intercept the y-axis at the point (0, 7).

The answer is:

$(0,7)$