Question

13. The equation of line l is given as y = 0.6x – 4.

If the slope is equal to a, y-intercept is equal
to b and x-intercept is equal to c, what is the
value of a + b + 3c?

Answer 1

Answer: 16.6

Explanation:

a = slope = 0.6

b = y-intercept = -4

c = x intercept = 20/3. (Set y=0 and solve for x)

So, a+b+3c = 0.6 - 4 + 3*20/3 = 16.6