1 in standard index form

Solve the system of equations. y= 2x y= x^2 - 15

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?