Magtanong at makakuha ng maaasahang mga sagot sa IDNStudy.com. Tuklasin ang malalim na sagot sa iyong mga tanong mula sa aming komunidad ng mga bihasang propesyonal.

Which of the following equations shows a direct variation?
a. y = 5x
b. y=x+1
C. y=x2-1
d. y = 2x - 1​


Sagot :

Answer:

A.

Step-by-step explanation:

A direct variation, also called direct proportion is a relationship between two variables x and y that can be written as y = kx, k ≠ 0. This situation occurs when the ratio of two variables is constant. When y = kx, we say that y varies directly with x.