Systems Of Equations
A negative number times a positive number equals?
Equals a negative number.
What is the equation for the Pythagorean theorem?
a^2 + b^2 = c^2
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Input: 3/4
Rule: Write 7
Output: V
What is the correct output?
A. 5
B. 7
C. 3
D. 1
B. 7
y=mx+b
What does the m represent?
M represents the slope.
What is a dilation of a triangle?
The process in which a shape becomes either bigger or smaller.
What is a variable?
A variable is a letter from the alphabet that represents an unknown number/value.
Does it matter what two angles you input as A^2 and B^2?
No
What does a function mean?
A. A function is a rule that assigns exactly one output to each possible input.
B. A function is a rule that assigns as many outputs to each possible input.
C. A function tells you what to do.
A. A function is a rule that assigns exactly one output to each possible input.
y=mx+b
What does the b represent?
The y-intercept.
Which of the following is true?
A. A rotation of 180 degrees is two turns
B. A rotation of 90 degrees is one turn
C. A rotation 160 is a full rotation
D. All of the above
D. All of the Above
12 + y = 5x − y = 2
In this equation what do you do after solving for y?
We plug-in y to the equation and then solve for x.
How do you determine if a triangle is a right triangle?
A right triangle follows A^2+B^2=C^2. After using the Pythagorean Theorem, if A^2 and B^2 do not equal C^2, then it is not.
What is the independent variable of a function?
A. The rate of change.
B. Nothing
C. The independent variable is also known as the output.
D. The independent is also known as the input and is known as an amount that is used to calculate another amount. An independent variable represents the input of a function.
C. The Independent Variable is also known as the input because you can put any number in and the function will still be true.
What are the Y-Intercept and Slope?
The slope is the steepness of a line and how many times you go vertical
And the y-intercept is when the line meets the y axis
If you dilate a shape by ⅓ which of the following is true?
A. You are multiplying the side lengths by ⅓
B. Dividing the lengths by ⅓ making the shape smaller
C. whatever way would be correct
B. Dividing the lengths by ⅓ making the shape smaller
What is our end goal in solving systems of equations?
To get the variable by itself.
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Side A: 4
Side B: 7
Side C/Hypotenuse: c
What is the unknown side?
The unknown side is the square root of 65
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Here below is a function that has different inputs. At what hour was it the highest temperature??
5-6
What does a slope mean?
The steepness of a line.
When you draw a dilated figure you must_
A. Prime the side lengths
B. Label the measurements of the side lengths
C. All of the above
C. All of the above
DAILY DOUBLE:
y=2x-10
y=4x-1
Solve the coordinate pair. Solve for X and Y.
Y: 8
X: -2.25
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Side A: 3
Side B: 8
Side C/Hypotenuse: X
Solve for X.
Answer options:
A. The square root of 65
B. 6
C. 21
A. The square root of 65
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DAILY DOUBLE:
What is the output of this function when the input is 8 and the rule is pi x radius^2?
200.96
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Which of these graphs represents the description of,” The number of chapters read,y, after x days. The slope of the line is 5/4.”
Graph 4
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Enlarge triangle PQR with O as the center of dilation and a scale factor of 2.
Show the dilation on your white board.