Which measure is greater?? One inch or one centimeter
1 answer:
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Answer:
--- Running cost
--- Monthly income
71 cars
R1775
Step-by-step explanation:
Given
Expenses
per car
Income
per car
Solving (a): Expression for the running cost
This is calculated as:
Where
y = Total running cost
x = number of cars
So:
Solving (b): Expression for monthly income
This is calculated as:
Where
y = Total income
x = number of cars
So:
Solving (c): Break even
To do this, we equate the expressions in (a) and (b)
Collect Like Terms
Solve for x
Solving (d): How much to break even
Substitute 71 for x in any of (a) or (b)
<em>Solving (e): There is no question to answer on the "graph"</em>
Answer:
y-intercept = -4
Step-by-step explanation:
equation of a line: y=mx+b
two points given are (5, -6.5) and (-12, 2)
first we can easily find value of m or the slope, by using the slope formula. the value of m=-0.5.
formua to find m: = -0.5
to find the value of b (the y-intercept), we need to plug in a y and x value, we are given 2 ordered pairs, you can use either one and plug x-value in for x and the y-value in for y.
if i plug in (5, -6.5), my equation looks like this: -6.5=5(-0.5)+b
then you just solve for b and it turns out to be -4.