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ddd [48]
3 years ago
9

What is the y-intercept of 2x+5y=−20 ? (0,−4) (10,4) (0,10) (−4,0)

Mathematics
2 answers:
vovangra [49]3 years ago
5 0

Answer:

(0,-4)

Step-by-step explanation:

Just took the quiz

Katen [24]3 years ago
3 0
Okay so for this problem you want to change it to an slope-intercept equation (y=mx+b, where m=slope and b=y intercept). so first you want to subtract 2x from both sides to isolate 5y, which gives you 5y=-2x-20. After that you want to isolate y so you’ll divide both sides by 5. This gives you y=-2/5(x) - 4. because b is the y-intercept and -4=b, then the y-intercept is -4. from here you need to know that coordinates are listed as (x, y) so the y-intercept is where x is equal to 0. So the answer is (0,-4). Does that make sense?
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