Simple...
you have: If this cable installer charges $42.50 per hour plus a fixed $45 service charge..then set your equation..using-->>
y=mx+b
How much would the cable installer charge for 5 hours?
y=42.50(5)+45
y=212.50+45
y=$257.50
Thus, your answer.
Answer:
y = 4x - 3
Step-by-step explanation:
When we re-write the given equation into its slope-intercept form, it will like this:
y = (-1/4)x - 6
This line has a slope equal to -1/4 so the slope of the required line has a slope of +4 (perpendicular to the given line). Use this new slope and the given point P0(-1, -7) into this equation:
y - y0 = m(x - x0) ---> y + 7 = 4(x + 1)
Rearranging the terms into its slope-intercept form, we get
y = 4x - 3