Identify the slope and yintercept of the function y = 7x-3.
A. The slope is 7.
The y-intercept is (0,3).
B. The slope is 7.
The y-intercept is (0, -3).
C. The slope is 3.
The y-intercept is (0,7).
D. The slope is -3.
The y-intercept is (0,7).