Question

The graph shows the number of jam jars filled by two different machines over several minutes.

The equation y = 3x represents the number of jars, y, Machine A fills in x min.



Which equation could represent the number of jars filled by Machine B?

a y = 1.5x

b y = 3x

c y = 6x

d y = 8x

Answer 1

The correct answer is y = 1.5x, A.
I am sure it is because I took the K12 test. I used the answer from the other person that answered this, and got it wrong. I reviewed the test, and It says that 1.5x is correct.

Answer 2

a. y = 1.5x

Explanation:

Both equations are equations of a line. All options have the form:

y = a*x

where y and x are the variables and a is the slope.

The slope of the equation corresponding to machine B is less than the machine A's slope (machine A line is above machine B line). The only option in which the slope is less than 3 is y = 1.5*x.