Student 1: Student:2
f-(1)=2+7(-1) f(-1)=2+7(-1)
f(-1)=9(-1) f(-1)=2-7
f(-1)=-9 f(-1)=-5
One student is incorrect. Analyze their work to determine which students work is correct and describe the mistakes made.
Based on the given expressions,
Student 1: f(-1) = 2 + 7(-1)
Student 2: f(-1) = 2 - 7
Let's evaluate these expressions:
Student 1:
f(-1) = 2 + 7(-1)
= 2 - 7
= -5
Student 2:
f(-1) = 2 - 7
= -5
Comparing their results, we can see that both students obtained the same answer, which is -5.
Therefore, both students are correct in this case and there are no mistakes made.