Lie/do not lie

The function is given by the rule f(x) = 8x+16. Determine whether point D[-1; 8] lies on this function. Solve graphically or numerically and give reasons for the your answer.

Result

Yes

No

Solution:

$$\begin{gathered} f(-1)=8\cdot (-1)+16=8 \\ f(-1)=8=8 \end{gathered}$$

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