Determine the domain and range of F(x)=2(x+1)^2-3

 domain: all real numbers.  range: [-3, infinity)

Step-by-step explanation:

We've got .

You can plug in any number for without a problem, so the domain is all real numbers, written .

If you graph the function, you can see it touches -3 but cannot go lower; however, it can reach anything higher than -3. Therefore the range is .

step-by-step explanation:

ask goog great chance of finding the solution there

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5