Which of the following has a graph that is a straight line? equation 1: y = 2x + 7 equation 2: y^2 = x − 1 equation 3: y = 2x^2+ 4 equation 4: y = 3x^3

Consider the linear function that is represented by the equation y= 4x+5

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.

Two less than the quotient of a number and four is less than six. i need the inequality. a. x< 32 b.x< -32 c.x> 16 d.x> -16