analytic and solid geometry

Question

Which of the following will make the statement x2+3 > 1 true?

 

Select one:

a. x = -1

b. x is less than or equal to -1

c. x is greater than or equal to -1

d. x > -1

Answer 1

x²+3>1, x²>-2 is true for all values of x because all squares are positive and -2 is negative.