Formalizing Relations and Functions Identify the dependent and independent variable in y = 12x - 30.

A: Dependent variable: y and Independent variable: x
B: Dependent variable: x and Independent variable: y
C: Dependent variable: x and Independent variable: x
D: Dependent variable: y and Independent variable: y

Explain how you got this step by step. a lot of you like to give false answers just for points but I really need help understanding this. Please don't answer if you arent sure Any attempt is appreciated.

x is independent

y is dependent

Step-by-step explanation:

as we can change the value as we want for x

but y is dependent on the value of x. It changes as we change the value of x

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt