Answer:
In order down the left side, ...
- y = 1/3x +2
- y = 1/2x +3
- y = 2x +6
- y = -2x +3
Step-by-step explanation:
To put a linear equation in slope-intercept form, you solve for y, then simplify.
<u>x -3y = -6</u>
Subtract x and divide by -3:
y = 1/3x +2
__
<u>2y -6 = x</u>
Add 6 and divide by 2:
y = 1/2x +3
__
<u>-x +(1/2)y = 3</u>
Add x and multiply by 2:
y = 2x +6
__
<u>2x +y = 3</u>
Subtract 2x:
y = -2x +3
_____
<em>Comment on the algebra</em>
Note that when we say add, subtract, multiply, or divide by something or other, we mean to <em>do that to both sides of the equation</em>. That is required by the properties of equality.
If you remember the rule: do the same thing to both sides of the equation, then algebra suddenly becomes much easier.
Answer:
9/2 or 4.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
Shifted 3 units down
Stretched vertically
Shifted 4 units left
Answer:
The percent of these mothers are between the ages 30-35 is 36.53%
Step-by-step explanation:
we are given
mean of age =31.7 years

standard deviation of 5.2 years

For age=30 years:
x=30
we can find z-score

we can plug values


For age=35 years:
x=35
we can find z-score

we can plug values


now, we can use normal distribution table

now, we can find percentage

=36.53%
T because it’s the only letter which appears 3 times (the most)