Three students found the mean of the data set given. Their work is shown below. Choose the student who correctly found the mean.
1 answer:
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Answer:
Hi there!
Recall that slope-intercept form is:
y = mx + b
Where m = slope
In this instance, we are given a slope of 4,
therefore:
y = 4x + b
Substitute in the x and y coordinates of the point given:
0 = 4(3) + b
0 = 12 + b
Substract 12 from both side:
-12 = b
Therefore, the equation would be:
y = 4x - 12
Graph the equation by finding x and y values or using a calculator:
x = 0, y = 4(0) - 12 = 12 (0, 12)
x = 1, y = 4(1) - 12 = - 8 (1, -8)
x = 2, y = 4(2) - 12 = - 4 (2, -4)
x = 3, y = 4(3) - 12 = 0 (3, 0)
And so forth:
Thanks<8
Answer:
(a) (x times x) + (5 times x) + 4
Step-by-step explanation:
Using my answer you first do exponent, so x times x then 5 times x and then 4 times x BUT keep those numbers apart still!
okay now we will take and add that value to 4 so we now have the numerator‘s value and for the denominator you will take
And multiply 4 times x and add those two answers and finally add the 3 you will have finished the denominator and FINALLY divide the numerator‘s result by the denominato’s result and you now have your answer.
the secret? Order of Operations or PEMDAS
1. Parentheses
2. Exponents
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)
5. BOOM the result will be your answer!