Functions: Warmups Part 1

The following function has a y-intercept (b) of 5, and a slope (m) of 3.

Drag the correct values of the Y (dependent) values that match the given X (independent) values.

Hint: Think about the coordinates of the y-intercept. The y-value is b...the x value is always 0. Got it?

• x = 2

• y = 8

• x = 1

• y = 11

• x = -2

• y = 2

• x = 0

• y = -1

• x = -1

• y = 5

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The following function has a y-intercept (b) of 8, and a slope (m) of -2.

Drag the correct values of the Y (dependent) values that match the given X (independent) values.

Hint: Think about the coordinates of the y-intercept. The y-value is b...the x value is always 0. Got it? Also, look at Mr. Slope Guy's right eye & eyebrow

• x = 4

• y = 2

• x = 3

• y = 0

• x = 0

• y = 8

• x = 1

• y = 6

• x = 2

• y = 4

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The following function has a y-intercept (b) of 1, and a slope (m) of 5.

Drag the correct values of the Y (dependent) values that match the given X (independent) values.

Hint: Think about the coordinates of the y-intercept. The y-value is b...the x value is always 0. Got it?

• x = 0

• y = 6

• x = 3

• y = -4

• x = 2

• y = 1

• x = 1

• y = 16

• x = -1

• y = 11

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Identify three points that would be on the line:

y = x + 6

Hint: Remember that the coordinates of a point are in (x,y) order. If you plug in a value of x into the equation, do the math and get y. For instance... if x = 11, then y = 11+6 = 17. So point (11,17) is on the line.

• (0,6)

• (4,10)

• (-1,7)

• (-1,5)

• (11,15)

Tags

CCSS.HSF.IF.A.1

Identify three points that would be on the line:

y = 2x + 3

Hint: Remember that the coordinates of a point are in (x,y) order. If you plug in a value of x into the equation, do the math and get y. For instance... if x = 11, then y = 2(11)+3 = 25. So point (11,25) is on the line.

• (0,2)

• (2,7)

• (-1,7)

• (-1,1)

• (0,3)

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Identify three points that would be on the line:

y = 3x + 2

Hint: Remember that the coordinates of a point are in (x,y) order. If you plug in a value of x into the equation, do the math and get y. For instance... if x = 11, then y = 3(11)+2 = 35. So point (11,35) is on the line.

• (0,2)

• (4,14)

• (-1,-1)

• (-1,1)

• (0,3)

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Jerry and Larry are both saving money for a new video game. Jerry is saving $10 per week, and has no money saved to start. Larry is also saving $10 per week, but he started with $25 in his account.

 Which statement best describes the difference between the graphs of these two linear relationships, where X represents the number of weeks and Y represents the amount of money saved?

• The y-intercept of Larry's line is greater than Jerry's line.

• The y-intercept of Jerry's line is greater than Larry's line.

• Jerry's line is steeper

• Larry's line is steeper

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Jerry and Larry both have McDonalds gift cards with an initial balance of $50 on them. Jerry spends $2 per visit for a cup of coffee, and Larry spends $5 per visit on a combo meal.

 Which statement best describes the difference between the graphs of these two linear relationships, where X represents the number of visits to McDonalds and Y represents the amount of money left on the gift card?

• The y-intercept of Larry's line is greater than Jerry's line.

• The y-intercept of Jerry's line is greater than Larry's line.

• Jerry's line is steeper

• Larry's line is steeper

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Jerry and Larry are committed to winning the next IXL challenge for their class and agree to answer 50 questions per day. Jerry is just getting started, but Larry had already answered 100 questions. Which statement best describes the difference between the graphs of these two linear relationships, where X represents the number of days in the challenge and Y represents the total number of IXL questions answered?

• The y-intercept of Larry's line is greater than Jerry's line.

• The y-intercept of Jerry's line is greater than Larry's line.

• Jerry's line is steeper

• Larry's line is steeper

Tags

CCSS.8.EE.B.5