3 years ago

What is the equation for the line that passes through the points (0,5) (5,8)

1 answer:

7 0

The equation of a line is slope-intercept form which is y=mx+b. (0,5) is the y intercept so we know that b=5. To find the slope plug in the two points into y2-y1/x2-x1. 8 and 5 are the y’s so 8-5=3 over 5-0=5 so the final slope is 3/5. That makes the equation of the line y=3/5-5. Hope this helped!

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This is a pre calculus question that I need help with, serious answer PLEASE and thank you! Will give brainliest.

IRISSAK [1]

The wording of this question is a bit confusing... You can't write a sequence in sigma notation, but rather a series or sum. I think the question is asking you to write the sum of the sequence,

$\dfrac12,\dfrac14,\dfrac18,\ldots,\dfrac1{64}$

which would be

$\dfrac12+\dfrac14+\dfrac18+\cdots+\dfrac1{64}$

in sigma notation.

To do this, notice that the denominator in each term is a power of 2, starting with $2^1=2$ and ending with $2^6=64$ . So in sigma notation, this series is