How do i find the x and y intercepts of y = (x-3)^2 - 4 Help Would be much appreciated.
1 answer:
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ANSWER: y= 3x - 6
STEP-BY-STEP EXPLANATION:
(1,-3) and (3,3)
X1=1 X2=3
Y1= - 3 Y2=3
1) Find the slope of the line.
To find the slope of the line passing through these two points we need to use the slope formula:
m =
m= m=
= 3
2)Use the slope to find the y-intercept.
Now that we know the slope of the line is 3 we can plug the slope into the equation and we get:
y= 3x+b
Next choose one of the two point to plug in for the values of x and y. It does not matter which one of the two points you choose because you should get the same answer in either case. I generally just choose the first point listed so I don’t have to worry about which one I should choose.
y= 3x+b point (1,-3)
-3= 3(1) + b
-3-3=b
-6=b
3)Write the answer.
Using the slope of 3 and the y-intercept of -6 the answer is:
y = 3x - 6
It would take 2 hours. To complete the whole lawn you would need:
To make a whole, so to get that we multiply:
So we use the same number required for the whole lawn, and multiply it times the hours
To make a whole, so to get that we multiply:
So we use the same number required for the whole lawn, and multiply it times the hours
You seem to be missing a symbol, which I assume is intersection 
.
From the definition of conditional probability,
From the definition of conditional probability,