Download presentation
Published byAlexandra Washington Modified over 9 years ago
1
Practice converting linear equations into Slope-Intercept Form
2
y = mx + b Slope intercept form is:
Our main goal is to get the y alone on one side of the equation
3
Convert Into Slope-Intercept Form
(divide both sides by 2 to get y alone) (now simplify all fractions) 2 1
4
*** Easy *** 5y = 10x + 15 y = 2x + 3 BRAVO!!
Convert to Slope-Intercept Form: 5y = 10x + 15 (divide both sides by 5 to get y alone) (now simplify all fractions) y = 2x + 3 BRAVO!!
5
*** Now Try this Convert to Slope-Intercept Form ***
-3y = -9x - 12 Step 1: divide both sides by -3 to get y alone Step 2: Simplify all fractions Step 3: Write your equation in y = mx + b What is the slope? ____________ What is the intercept? ____________
6
*** Check Your Answer ***
-3y = -9x - 12 (divide both sides by -3 to get y alone) (now simplify all fractions) -3y = -9x - 12 y = 3x + 4 Wow, you’re good at this!! Slope = 3 Intercept = 4
7
*** medium *** 21x – 7y =14 -7y = -21x + 14 y = 3x – 2
Convert to Slope-Intercept Form: 21x – 7y =14 (subtract both sides by 21x) (now divide both sides by -7) -7y = -21x + 14 (simplify all fractions) y = 3x – 2
8
*** Now Try this Convert to Slope-Intercept Form ***
2y + 26 = -6x Step 1: Subtract both sides by 26 Step 2: Divide both sides by 2 to get y by itself Step 3: Simplify all fractions What is the slope? ____________ What is the intercept? ____________
9
*** Check Your Answer ***
2y + 26 = -6x (subtract both sides by 26) (now divide both sides by 2 2y = -6x - 26 (simplify all fractions) y = -3x - 13 You are a math wizard!
10
Can’t add or sub these. Why?
Write these equations in slope-intercept form. Can’t add or sub these. Why? They are not Like Terms 1. We want y by itself Mark it - then Move the term beside it to the other side (do the opposite + or -) Move the term in front of y (divide by the number in front of the y)
11
Can’t add or sub these. Why?
Put in Slope-Intercept Form - Solve for “y” Can’t add or sub these. Why? They are not Like Terms 2. We want y by itself Mark it - then Move the term beside it to the other side (do the opposite + or -) Move the term in front of y (divide by the number in front of the y)
12
Put in Slope-Intercept Form - Solve for “y”
We want y by itself Mark it - then Move the term beside it to the other side (do the opposite + or -) Move the term in front of y (divide by the number in front of the y) 3.
13
Put in Slope-Intercept Form - Solve for “y”
We want y by itself Mark it - then Move the term beside it to the other side (do the opposite + or -) Move the term in front of y (divide by the number in front of the y) Nothing to move!! So turn it around! 4. 5.
14
Put in Slope-Intercept Form - Solve for “y”
We want y by itself Mark it - then Move the term beside it to the other side (do the opposite + or -) Nothing to move so Move the term in front of y (divide by the number in front of the y) 6. 7.
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.