2 Emerson is hiking down a mountain with a group of her
friends in Colorado. They begin their
hike at an elevation of 9,800 feet and
hike down at a rate of 50 feet per
minute. Write an equation to show
Emerson and her friends elevation
related to time in minutes.

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10