Question

Which expressions, when evaluated with z = 8, are negative in value?



Choose all answers that are correct.



A.


–2z – 14


B.


–25 + 4z


C.


–2z + 15


D.


30 – 3z

Answer 1

Plug in 8 in every z in the equations and test it.

Answer 2

so its like the number by it means 8 times
?????

Answer 3

letter

Answer 4

\[-2(8)-14\]

Yes you just sub in 8 for where ever a z is, it's a good habit to see this now, as it will be very common in coming math courses.