The graph below shows four straight lines, w, x, y, and z.
which line is represented by the function f(x) = 3x + 5?
a: line w
b: line x
c: line y
d: line z

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Which statement shows that 6.24 is a rational number? a. 6.24 = 6.242424 b. 6.24 = 6.24 c. 6.24 = 68⁄33 d. 6.24 = 66⁄25

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?