Is the function given by f (x )equals left brace start 2 by 1 matrix 1st row 1st column x squared plus 4 comma for x less than 0 2nd row 1st column negative 4 comma for x greater than or equals 0 endmatrix nbsp f(x)= x2+4, for x < 0 −4, for x≥0 continuous at x equals negative 4 x=−4? why or why not?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done