Which of the following is a parent function? A. f(x)=e^x
B. f(x) = 2e^2x
C. f(x) = 2•3^x
D. f(x) = x^4+3

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

Write the expression as a single natural logarithm. 2 in a - 4 in y

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,