How do i graph y=2(10)+9 when there are only 20 lines on graph for positive numbers

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

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