Find the slope of a line with a y-intercept of -5 that goes through the point (12,3). Formula: y=mx+b

Slope is equal to rise over run. In this case there is a point at (0,-5), and (12,3). The change in the y is positive 8, and x positive 12. Because of the slope formula change in y over change in x, you could write this as 8/12, or 2/3. The equation would then be

y=2/3x-5

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.

Idon’t know what the answer is i wish i could