Are the following lines perpendicular? Explain your answer. y = 1/2 x + 1

4x + 2y = 18

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1