Answer:
- 3 and x² + 2x - 3
Step-by-step explanation:
(a)
To evaluate g(1) substitute x = 1 into g(x)
g(1) = 1² - 4 = 1 - 4 = - 3
(b)
Substitute x = x + 1 into g(x)
g(x + 1) = (x + 1)² - 4 ← expand parenthesis using FOI
= x² + 2x + 1 - 4 ← collect like terms
= x² + 2x - 3
Answer:
120 students don't have social media accounts
Step-by-step explanation:
Whether the sample is representative:
Estimate:
Hope this helps
Answer:
Step-by-step explanation:
No
2(3x-6)=6x-12
2(3x)-6=6x-6