Solve the problem.Suppose y = mx + b is a mathematical model for actual time as a function of estimated time, where y represents actual time and x represents estimated time and m and b are constants. If m = 0.8 and b = -2.1, find y when x is 60 min.

A. 45.9 min
B. 50.1 min
C. 61.68 min
D. 58.32 min

Answer: A

Mathematics

You might also like to view...

Graph the quadratic function. Determine the vertex, find the equation of the axis of symmetry, find any x- and y-intercepts, and state the domain and range in interval notation.f(x) = -7x2 - 2x - 12

A. vertex:
axis of symmetry: x =
x-intercept: none; y-intercept: 12
domain: (-?, ?); range:

B. vertex:
axis of symmetry: x =
x-intercept: none; y-intercept: -12
domain: (-?, ?); range:

C. vertex:
axis of symmetry: x = -
x-intercept: none; y-intercept: 12
domain: (-?, ?); range:

D. vertex:
axis of symmetry: x = -
x-intercept: none; y-intercept: -12
domain: (-?, ?); range: