Mathematics: Which one is a function

Which one is a function - id9607742, melvina13bday

clairajogriggsk

12.02.2022

The answer is A

Step-by-step explanation:

In order for it to be a function the ordered pairs can't have the same y

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FantasticFerret

12.02.2022

Step-by-step explanation:

functions are straight lines and will never be curved

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elyzarobertson

06.03.2021

A. - 0.6

Step-by-step explanation:

Since, the equation of a line passes through (x_1,y_1) , having slope m is,

y-y_1=m(x-x_1)

Thus, the equation of the line passes through point (0.4,-1/2) and has the slope of 1/4 is,

$y-(-\frac{1}{2})=\frac{1}{4}(x-0.4)$

$\implies y+\frac{1}{2}=\frac{1}{4}(x-0.4)$

For y-intercept, x = 0,

$\implies y+\frac{1}{2}=\frac{1}{4}(-0.4)$

$\implies y + 0.5 = -0.1$

$\implies y = -0.1-0.5 = -0.6$

Hence, the value of the y-intercept is -0.6.

Option 'A' is correct.

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