Linear Functions Slope Interpretation

Which of the following does NOT have a slope of 3 and a y-intercept of -1?

• 3x+4y=-4

• y=3x-1

• y-5=3(x-2)

• 6x-2y=2

The line with equation y=2x-11 passes through the point with coordinates (a,2). The value of a is...

• 2

• 5.5

• 6.5

• 7

Which table represents a linear function?

• Table A

• Table B

• Table C

• Table D

Which equation describes the graph?

• 2y+5x=10

• 5x+2y=1

• 2x+5y=1

• y=2x+5

On a car trip, Theresa kept a record of her gas mileage. She discovered that for every 23 miles, she used 1 gallon of gas. Which of the following equations model this situation?

• x=y+23

• x=23y

• y=x+23

• y=23x

Which of the following could be an equation for the graph shown in the xy-plane?

• f(x)=(3/4)x+3

• f(x)=-(3/2)x+3

• f(x)=-(3/4)x+3

• f(x)=(3/2)x+3

The graph of y=f(x) is a line in the xy-plane that passes through the point (0, -4) and has a slope of 4. Which of the following equations could define the function f?

• f(x)=-4x+4

• f(x)=4x-4

• f(x)=1/4x-4

• f(x)=1/4x+4

The graph of a line in the xy-plane has a positive slope and intersects the y-axis at a point that has a negative y-coordinate. Which of the following could be an equation of the line?

• -3x+2y=-5

• -3x+2y=5

• 3x+2y=-5

• 3x+2y=5

In the xy-plane, line k intersects the y-axis at the point (0,3) and passes through the point (4,0). If the point (16, z) lies on the line k, what is the value of z?

• -9

• 2.25

• 2.95

• 15

In the xy-plane, line k has a slope of 1/2. If the line m is perpendicular to line k, which of the following could be an equation of line m?

• 6x+12y=36

• 4x-2y=17

• 3x-6y=14

• -10x-5y=20