This is the concept of algebra, we solve the question as follows:
The cost of renting a camping tent is y
The number of days is x
cost is proportional to number of days, thus:
yαx
y=kx
where k is the constant of proportionality.
If y=$56 when x=7 days, then:
56=7k
hence:
k=56/7=8
therefore:
y=kx will be:
y=8x
the equation in slope intercept form which is y=mx+c is y=8x. In our case c=0 because there was no initial payments required to rent apart from the daily charges.
A function, such is a mathematical collection of algebraic terms. Functions can be reflected across the x-axis by multiplying the entire function by -1. In this case multiplying the function by -1 leads to -4x/2. Hence the new function is -4x/2. Functions can also be reflected in the y-axis by replacing x with -x.
the answer is 5 bebe. remember to use pemdas
p-parenthesis
e-exponents
m-multiplication
d-division
a-addition
s-subtraction
