Which set of ordered pairs does NOT represent y as a function of x? a {(9, 6), (10, 6), (11, 6), (12, 6)}
b {(1, 0), (2, 3), (4, 5), (2, 6)}
c {(4, 5), (5, 6), (6, 7), (7, 8)}
d {(1, 10), (2, 5), (-1, 5), (-2, 10)}

James purchased a $205,000 home with a 30-year mortgage at 5.78%. if makes a $1500 monthly mortgage payment, how many months early will he pay off his mortgage? a. 180 months b. 224 months c. 127 months d. 136 months

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?