Which matrix is matrix B if A=[-2 5 7 6] and |B|= -|A|

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

Which of the following is true for the relation f(x)=2x^2+1

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers