Which of the following ways can be used to determine whether a linear relationship is proportional? select all that apply. a. the equation is in y=kx form
b. the equation is in y=mx+b form
c. in a table, the ratios are not equivalent
d. in a graph the line passes through the orign
e. the graph of the relationship is a straight line​

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get