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3 years ago

Which function describes this graph? f( x)=x+2 f( x)=4x+2 f( x)= x+2

Mathematics

1 answer:

sladkih [1.3K]3 years ago

4 0

Answer:

f(x) = 1/4x +2

Step-by-step explanation:

The y-intercept formula is y = mx + b. b is the y-intercept. The line crosses the y-axis at 2, so the y-intercept is 2. m is the slope and it is rise/run (rise over run). It rises (from the y-axis) once and runs 4 times. Therefore, the slope is 1/4. The equation is f(x) = 1/4x +2.

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Answer :

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Step-by-step explanation:

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$we \: know \: that \: \\ slope = \frac{y2 - y1}{x2 - x1} \\ here \: x1 = - 1 \: \: \: x2 = - 1 \\ y1 = 2 \: \: y2 = 9 \\ on \: substituting \: the \: values \: \\ = \frac{9 - 2}{ - 1 - ( - 1)} \\ = \frac{7}{ - 1 + 1} \\ = \frac{7}{0} \\ = \infty \\ hence \: the \: slope \: is \: undefined$

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