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Brrunno [24]
3 years ago
7

Determine the coordinates of the y-intercept of the function shown in the graph.

Mathematics
2 answers:
Flura [38]3 years ago
7 0
Ok, i really don't remember this, so i don't want to steer you wrong. maybe wait for another answer?
stiv31 [10]3 years ago
3 0
First let’s find the slope of the line given.
m=y2-y1/x2-x1
m=6-3/-4-(-3)= -3
Now y=mx+b is equation of a line. We just found m so let’s plug in two points from the graph for our (x,y) values

6=-3(-4)+b
Therefore b = -6. So our line equation is y=-3x-6

So now we can find the coordinate point for the y-intercept which is (0,-6)

Hope this helps explain the concept! Any questions please ask!! Thank you!!
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2 years ago
The value of y varies directly as the square of x and y=27 when x=9. Find the equation represents this relationship. Report the
skad [1K]

Answer:

The relation between x and y is

y=\frac13 x^2

Step-by-step explanation:

Given that,

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y\propto x^2

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Given that,

y= 27 and x=9

Plug y= 27 and x=9 in above relation

y=rx^2

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The relation between x and y is

y=\frac13 x^2

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