Guided Practice Tell whether the graph of the equation is a horizontal or a vertical line. Explain your choice.

y = –1

A.
horizontal; for all values of x, y = –1

B.
vertical; for all values of y, x = –1

C.
horizontal; for all values of x, y = 0

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)

What statement is true? 2x^2-9x+2=-1