The graph of a linear function passes through the point (1, 4) and has a slope of 2. What is the zero of the function?

Umm.. just started this 2day and its not on my notes(p′︵‵。)

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?