The function would be f(x) = 40x + 4.
It's plus 4 because it starts counting after the 4 kilometers already happened.
It's 40x because that's the rate of change (km/h) and the x represents the hours.
f(x) basically means y, but in functions you use f(x).
Hope this helps :)
Answer:
The perimeter of it is going to be 50
Step-by-step explanation:
This is because when finding the perimeter you add up all the sides so
14 + 12 + 18 + 6 = 50
Answer:b)3
Step-by-step explanation:
Answer:
correct equation:
y = 0.5x <u>- 6</u>
Step-by-step explanation:
in Tahlia's answer (y = 0.5x), she got the correct gradient (0.5) but didn't specify the y intercept (-6). this is important as it shows where the line crosses over the y axis (vertical).
the equation for this line is:
y = 0.5x - 6
I hope this was helpful :-)
Answer:
13
Step-by-step explanation:
The distance that has from is:
So let's just apply the formula there: