Hey I need help on this question not getting it, if one of you could please help me it would mean alot! Thank you!!

A. y=-0.5x-2.5

Step-by-step explanation:

To figure out the equation of a line, use the formula y=mx+b, where x and y are the co-ordinate values, m is the slope and b is the y-intercept (where the line cuts the y-axis).

The slope, m, is calculated by dividing the y-difference (in this case, -2.5) by the x-difference (5): -2.5/5 = -0.5

From the diagram, we can see the line cuts the y-axis at (0,-2.5). Therefore b=-2.5

Sub in our values to get: y=-0.5x-2.5

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3