Answer:
a) C(x) = 4x + 350
b) 13x; $13
c) 39
Step-by-step explanation:
a) Initial cost of lawnmower = $350
Maintenance cost for 1 lawn = $4
Maintenance cost for x lawns = 4x
Total cost function, C(x) = 4x + 350
b) Revenue = Cost + Profit
= C(x) + P(x)
= 4x + 350 + 9x - 350
= 13x
Charge per lawn = 
= 
c) For Jimmy to make a profit, P(x) must be greater than zero i.e.
The smallest integer value of x that satisfies this inequality is 39. Therefore, Jimmy needs to mow 39 lawns in order to start making profit.
Y=mx+b
m=slope, b=y-intercept
m=(y2-y1)/(x2-x1), b=value of y when x=0
m=(3--1)/(-2-4)
m=4/-6
m=-2/3, now we have:
y=-2x/3+b, we can solve for b using any point, I'll use (4,-1)
-1=-2(4)/3+b
-1=-8/3+b
-3/3+8/3=b
5/3=b so
y=-2x/3+5/3
The answer is D because your b-value (in the formula y= mx+b) is your y-intercept which is +6 (or simply just 6) and your y-intercept is always when x=0 so D is the correct answer
Answer:
2500m²
Step-by-step explanation:
Maryam has an edging material which is 100m in dimension.
To find the maximum possible area for this expanse of space, we must set the dimensions equal to that of a square
In essence, from the 100m edging material, the maximum area would be:
L = 50m and B = 50m
The largest possible area = l x b = 50 x 50 = 2500m²
I think B because you would have to divide by 5 to get y by itself.
