Chapter 8 Quiz on Lessons 6 to 8 Get a whiteboard, marker, eraser, or graph paper, and ruler. What’s on the quiz? Copy this down.  Look at a graph and.

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Presentation transcript:

Chapter 8 Quiz on Lessons 6 to 8 Get a whiteboard, marker, eraser, or graph paper, and ruler. What’s on the quiz? Copy this down.  Look at a graph and write the equation using slope-intercept form.  Write the equation of a line given two points.  Write the equation of a line given the slope and the y- intercept.  Find slope using two points.  Write equations for parallel and perpendicular lines.  Look at a scatter plot, draw a best-fitting line, and make predictions.  Use function notation.  Solve linear systems.  Look at a graph and write the equation using slope-intercept form.  Write the equation of a line given two points.  Write the equation of a line given the slope and the y- intercept.  Find slope using two points.  Write equations for parallel and perpendicular lines.  Look at a scatter plot, draw a best-fitting line, and make predictions.  Use function notation.  Solve linear systems.

Pre-Algebra Review Answers will appear after problem on screen.

Get in function form. 3x-4y=16

Y=3/4x-4

Solve the linear system (find the intersecting point) : Y= 3x - 8 Y = 2x - 5 Solve the linear system (find the intersecting point) : Y= 3x - 8 Y = 2x - 5

(3, 1)

Solve the linear system by graphing: X + Y = 3 X - Y = -5 Solve the linear system by graphing: X + Y = 3 X - Y = -5

(-1, 4)

Solve the linear system: Y = 5x - 3 Y = 5x + 2 Solve the linear system: Y = 5x - 3 Y = 5x + 2

/ No solution

Solve the linear system Y = -4x + 3 Solve the linear system Y = -4x + 3

/ Infinitely many solutions

Write the equation of the line.

Y=1/2 x + 1

Write the equation of the line that goes through the points: (2,5) and (0, -6)

Y=11/2 x-6

Write the equation of a line parallel to: Y = 5x -6 And goes through the point (0, 7) Y = 5x -6 And goes through the point (0, 7)

Y=5x+7

Write the equation of a line perpendicular to: Y = 5x -6 And goes through the point (0, -8) Y = 5x -6 And goes through the point (0, -8)

Y=-1/5x-8

F(x)=3x-5 Find f(6)

13

F(x)=3x-5 Find x when f(x)=1 Find x when f(x)=1

X=2