Transcript Web_Chapter_7_Quiz_R..

QUICK QUIZ
1. A system of equations that is consistent
and independent has _______________ solutions.
2. Solve (By Graphing)
x+y=4
x + y = -1
3. Solve (Use Substitution)
x=y–5
4x + 3y = 1
4. Solve (Use Elimination)
2x + 3y = 13
3x – 4y = -23
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QUICK QUIZ
1. A system of equations that is consistent
one
and independent has _______________
solution(s).
2. Solve (By Graphing)
x+y=4
no solution
x + y = -1
3. Solve (Use Substitution)
x=y–5
(-2,
4x + 3y = 1
3)
4. Solve (Use Elimination)
2x + 3y = 13
(-1,
3x – 4y = -23
5)
FLASH CARDS
PART 1: WHAT IS THE SLOPE & Y-INTERCEPT?
y = 2x + 6
slope (m) = 2
y-intercept = 6
FLASH CARDS
PART 1: WHAT IS THE SLOPE & Y-INTERCEPT?
y = -3x – 8
slope (m) = -3
y-intercept = -8
FLASH CARDS
PART 1: WHAT IS THE SLOPE & Y-INTERCEPT?
6x – 2y = 8
slope (m) = 3
y-intercept = - 4
FLASH CARDS
PART 1: WHAT IS THE SLOPE & Y-INTERCEPT?
x + 6y = 5
slope (m) = -1/6
y-intercept = 5/6
FLASH CARDS
PART 1: WHAT IS THE SLOPE & Y-INTERCEPT?
5x – 2y = 6
slope (m) = 5/2
y-intercept = -3
FLASH CARDS
PART 2: HOW MANY SOLUTIONS AND WHY?
5x + 3y = 7
2x – 4y = 2
ONE
BECAUSE SLOPES ARE DIFFERENT
FLASH CARDS
PART 2: HOW MANY SOLUTIONS AND WHY?
y = 2x + 3
y = -2x + 3
ONE
BECAUSE SLOPES ARE DIFFERENT
FLASH CARDS
PART 2: HOW MANY SOLUTIONS AND WHY?
y = 3x - 7
y = 3x + 7
NO SOLUTION
BECAUSE SLOPES ARE THE SAME
AND Y-INTERCEPTS ARE DIFFERENT.
FLASH CARDS
PART 2: HOW MANY SOLUTIONS AND WHY?
2x – 3y = 2
4x – 6y = 7
NO SOLUTION
BECAUSE SLOPES ARE THE SAME
AND Y-INTERCEPTS ARE DIFFERENT.
FLASH CARDS
PART 2: HOW MANY SOLUTIONS AND WHY?
y = 4x - 1
4x + y = 1
ONE
BECAUSE SLOPES ARE DIFFERENT.
FLASH CARDS
PART 3
MULTIPLY WHICH EQUATION(S) BY WHAT…
To eliminate the x
3x – 4y = 1
6x – 7y = 8
FIRST EQUATION BY -2
FLASH CARDS
PART 3
MULTIPLY WHICH EQUATION(S) BY WHAT…
To eliminate the y
x – 3y = 0
5x – y = 2
SECOND EQUATION BY -3
FLASH CARDS
PART 3
MULTIPLY WHICH EQUATION(S) BY WHAT…
To eliminate the x
2x – y = 7
3x + 2y = 1
FIRST EQUATION BY -3
AND SECOND EQUATION BY 2
FLASH CARDS
PART 3
MULTIPLY WHICH EQUATION(S) BY WHAT…
To eliminate the y
2x – y = 7
3x + 2y = 1
FIRST EQUATION BY 2
END
CHAPTER 7 QUIZ:
SOLVING SYSTEMS OF EQUATIONS
The chapter 7 quiz will involve the following:
HOW MANY SOLUTIONS?
SOLVE BY GRAPHING
SOLVE USING SUBSTITUTION
SOLVE USING ELIMINATION
SOLVE USING MULTIPLICATION & ELIMINATION