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Natalka [10]
3 years ago
6

What us the y-intercept of the equation 4x + 5y =20

Mathematics
2 answers:
Irina-Kira [14]3 years ago
8 0

We know that when a line intercepts the y axis, x is 0. So substitute x as 0, which makes the equation 5y = 20 and divide both sides by 5, so y = 4 which is the y intercept.

MAXImum [283]3 years ago
3 0

Write equation in slope-intercept format, <u> y = mx + b,</u> where b is the y-intercept.


4x + 5y = 20

5y = -4x + 20

y = -4/5 x + 20/5

<u>y = -4/5 x + 4</u>


y = mx + b

y = -4/5 x + 4

<u>b = 4</u>


Answer: y-intercept = (0, 4)

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