The only solution of the equation x2 + bx + 16 = 0 is x = 4. What is the value of b? b = –16 b = –8 b = 8 b = 16

What line represents the relationship between r and s

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?