Geometry geometry geometry

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.