Given the equation 2x + 5y = 5, answer the following questions.
(a) is the slope of the line described by this equation positive or negative?
(b) as x increases in value, does y increase or decrease?
(c) if x decreases by 20 units, what is the corresponding change in y?
(d) if y decreases by 10 units, what is the corresponding change in x?

Acamper leaves camp on a kayak and travels 50 miles east on a river, then he ties his kayak to the bank and travels 20 miles north on a bicycle. this trip can be plotted on the coordinate plane, where the camp is the point (0, 0). the distant of the camper to the camp can be found using the distance formula. which other formula can he use? a) 502 - 202 b) 502 + 202 c) 502 - 202 d) 502 + 202

The sum of two numbers is 86, and their difference is 20. find the two numbers

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0