The san francisco bay tides vary between 1 foot and 7 feet. the tide is at its lowest point when time (t) is 0 and completes a full cycle in 8 hours. what is the amplitude, period, and midline of a function that would model this periodic phenomenon?
a. amplitude = 6 feet; period = 8 hours; midline: y = 4
b. amplitude = 6 feet; period = 4 hours; midline: y = 3
c. amplitude = 3 feet; period = 8 hours; midline: y = 4
d. amplitude = 3 feet; period = 4 hours; midline: y = 3

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.

Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)