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# Common Core Standard 8.F.A.3 Questions

Interpret the equation y = mx + b as defining a linear function, whose graph is a straight line; give examples of functions that are not linear. For example, the function A = s2 giving the area of a square as a function of its side length is not linear because its graph contains the points (1,1), (2,4) and (3,9), which are not on a straight line.

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Grade 8 Linear Equations CCSS: 8.F.A.3
Grade 8 Linear Equations CCSS: 8.F.A.3
Grade 8 Linear Equations CCSS: 8.F.A.3
Which of the following statements is not true for the equation 6x-2y=10
1. The y-intercept is at -5
2. Slope-intercept form of the line is y=3x-5
3. It passes through the point (1,2)
4. The line contains a positive slope
Is this graph linear?
1. Yes
2. No
3. Not enough information
4. Sometimes
Is this graph linear?
1. Yes
2. No
3. Not enough information
4. Sometimes
Is this graph linear?
1. Yes
2. No
3. Not enough information
4. Sometimes
Is this graph linear?
1. Yes
2. No
3. Not enough information
4. Sometimes
Is this graph linear?
1. Yes
2. No
3. Not enough information
4. Sometimes
Is this graph linear?
1. Yes
2. No
3. Not enough information
4. Sometimes
Grade 8 Functions CCSS: 8.F.A.3, 8.F.B.5
The equation $y=-2x^2+2$ is
1. Linear
2. Nonlinear
3. Not a function
4. Both B and C
The equation $y=-15x+13$ is
1. Linear
2. Nonlinear
3. Not a function
4. Both B and C
The equation $x=-3$ is
1. Linear
2. Nonlinear
3. Not a function
4. Both A and C
Grade 8 Functions CCSS: 8.F.A.3, 8.F.B.5
The equation $y=3x+4$ is
1. Linear
2. Nonlinear
3. Not a function
4. Both B and C
The equation $1-3x^2-y=2x-3+2y$ is
1. Linear
2. Nonlinear
3. Not a function
4. Both A and C
The equation $y=6$ is
1. Linear
2. Nonlinear
3. Not a function
4. Both A and C
The equation $6x-y=x-12$ is
1. Linear
2. Nonlinear
3. Not a function
4. Both B and C
The equation $x+5+7y=12+7y$ is
1. Linear
2. Nonlinear
3. Not a function
4. Both A and C
The equation $2x+13+3y=13+3y$ is
The equation $2x=-4+2y$ is