How do you determine the intercepts from an equation or graph?

1 answer:

4 0

From a graph :
the x intercept is where the line crosses the x axis. and the y intercept is where the line crosses the y axis.

from an equation :
Lets say ur equation is 2x + 5y = 10....to find the x axis, u need to sub in 0 for y and solve for x.
2x + 5(0) = 10
2x = 10
x = 5....so the x axis would be (5,0)
to find the y axis, sub in 0 for x and solve for y.
2(0) + 5y = 10
5y = 10
y = 2....so ur y intercept is (0,2)

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15, Evaluate 6 choose 4.

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Answer: The required result is 15.

Step-by-step explanation: We are given to evaluate the following :

"6 choose 4".

Since we are to choose 4 from 6, so we have to use the combination of 6 different things chosen 4 at a time.

We know that

the formula for the combination of n different things chosen r at a time is given by

$^nC_r=\dfrac{n!}{r!(n-r)!}.$