Find the equation of the line that contains the point (1, 1) and is perpendicular to the line y = -1/4x + 4. Write the equation in slope-intercept form, if possible. PLEASE HELP!

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.