McLinn Math #1

What algebra step do you need to do to the linear equation

y - 7 = 1/3x + 5

to get it into SLOPE INTERCEPT FORM (y = mx + b)?

• Add 7 to both sides of the equation.

• Nothing. It is already in slope intercept form.

• Subtract 7 from both sides of the equation.

• Subtract 5 from both sides of the equation.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

In the equation y = mx + b what is "b?"

• The slope of the line.

• A random variable.

• The y-intercept.

• The x-intercept.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

7 - (-3)

• 4

• -4

• -10

• 10

Tags

CCSS.7.NS.A.1C

Slope is...

Hint: Choose EVERY correct answer!

• Rise/Run

• How steep a line is

• The change (difference) in y values over the change (difference) in x values

• (y2 - y1) / (x2 - x1)

Tags

CCSS.8.EE.B.5

When graphing a line, having a slope of -2/3 is the same as having a slope of 2/-3.

True or False?

• TRUE

• FALSE

Tags

CCSS.8.EE.B.5

3(-12)

• -9

• -15

• -36

• 36

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Put this equation into slope intercept form (y = mx + b):

-3y = 2x + 9

• y = 2/3 x + 3

• y = 2/3 x - 3

• y = 2x - 3

• y = -2/3 x - 3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

-4/5 + 1/3

• -3/8

• -7/15

• -3/2

• 7/15

Tags

CCSS.7.NS.A.1C

Put the linear equation into slope intercept form (y = mx + b):

5y - 2 = 3x + 3

Hint: "Solve for y!"

Hint #2: Two algebra steps involved!

• y = 5/3 x + 5

• 5y = 3x + 5

• y = 3/5 x + 1

• y = 1/5 x + 1

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

-20 - (-7)

HINT: "SAME CHANGE CHANGE!"

HINT: "ADD THE OPPOSITE!"

• -13

• -27

• 27

• 13

Tags

CCSS.7.NS.A.1C