These shapes are similar. Which equation could be used to find the missing value of X?? I am so confused

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3