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Published byPayton Nations
Modified over 4 years ago
Re-Writing Equations Part of quiz @ end of class
4x + 2y = 6 If an equation is not in slope-intercept form, we must first solve the equation for y. 1)Add or subtract 2)Multiply or divide
Y = 3 – 2x How do we identify the slope? How do we identify the y-intercept?
4y + 12x = 16
25x – 5y = 30
Positive/Negative Slope Positive – Goes up from the left to the right. – Negative – Goes down from left to right –
Horizontal Think “hoy” – “h” – horizontal line – “o” – zero slope – “y” – equation is of the form y =
Undefined Think “vunx” – “v” – vertical line – “un” – undefined slope – “x” – equation is of the form x =
Lines, Lines, Lines!!! ~ Horizontal Lines Vertical Lines.
Copy in Agenda and add to TOC: –#5 Finding Slope and Y-intercept Given Slope Intercept Form.
1.4 Linear Equations in Two Variables
Chapter 3: Parallel and Perpendicular Lines
3.7 Equations of Lines in the Coordinate Plane
Do Now .
Warm Up Solve each equation for y. 1. 7x + 2y = 6 2.
Finding the Slope of a Line From Two Points
Warm Up Graph each equation on the same coordinate plane and describe the slope of each (zero or undefined). y = 2 x = -3 y = -3 x = 2.
Graph a linear equation Graph: 2x – 3y = -12 Solve for y so the equation looks like y = mx + b - 3y = -2x – 12 Subtract 2x to both sides. y = x + 4 Divide.
SLOPE of a Line from 2 Points
MCC85 & MCC86. Students will graph and analyze graphs of linear equations. a. Interpret slope as a rate of change. b. Determine the meaning of the slope.
3-5 Lines in the coordinate plane M11. B
Linear Equations Review. Find the slope and y intercept: y + x = -1.
Exponents, Parentheses, and the Order of Operations.
Writing Parallel and Perpendicular Lines Part 1. Parallel Lines // (symbol) All parallel lines have the same slope. Parallel lines will NEVER CROSS. Since.
Writing equations given slope and point
Calculating Slope of a Line :
Linear Equations Ax + By = C.
Bell Work Solve for “y” 1.) 3x – 2y = -8 2.) 5x – y + 12 = 3x ) 3x – 4y = -7y – 12.
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