A line passes through the points (p, a) and (p,-a) where p and a are real numbers. If p = 0, what is the y-intercept? Explain your reasoning.

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Give all possible names for the line shown.calculation tip: lines can be written with either point first.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.