Question

Orhan studied the relationship between temperature and sales of refreshments at the concession stands inside the football stadium. He wrote an equation for the linear function that relates temperature (x) and refreshment sales. (Y). Which of the following could be Orhan’s equation ?
A. y=3x^2+25
B. y^2=15x+40
C.=y=11x-55
D.y=x^3-135

Answer 1

The equation for the linear function that relates temperature (x) and refreshment sales (y) from the considered option can be given by: Option C: y = 11x- 55

What is linear equation?

Linear equation is equation in which each term has at max one degree. Linear equation in variable x and y can be written in the form y = mx + c

Linear equation with two variables, when graphed on cartesian plane with axes of those variables, give a straight line.

For this case, we see that the option C: y = 11x - 55 is such that each term is having at max one variable (therefore 1 degree) or no variable (therefore 0 degree).

Thus, option C represents a linear equation. Its graph is given below.

Option A has $x^2$ which is two degree, Option B has two degrees in y, and in Option D, there is x with three degrees.

Thus, the equation for the linear function that relates temperature (x) and refreshment sales (y) from the considered option can be given by: Option C: y = 11x- 55

Learn more about linear equations here:

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