Graphs Review

Presentation

•

Mathematics

•

8th - 9th Grade

•

Hard

•

CCSS

8.F.A.1, HSF-IF.C.7A, HSF.IF.B.5

Standards-aligned

Rebecca Entrekin

Used 6+ times

FREE Resource

6 Slides • 4 Questions

Graphs Review

Activating Question:

Write a slope-intercept equation

for this line

Slope-Intercept Form

In order to join a dancing club, there is a $30 startup fee and a $4 monthly fee. Write an equation in slope-intercept form that models this situation and use it to find the cost of one year of dancing.

Multiple Choice

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. How much would it cost to be a member for 6 months?

$25

$125

$50

$150

Domain and Range

Domain = set of possible x values
Range = set of possible y values
What are the domain and range of this graph?

Multiple Choice

What is the range of this graph?

y ≥ 2

y ≥ 3

y ≤ 2

y ≤ 3

Features of Quadratic Graphs

ax² + bx + c → c is the y-intercept
a(x - h)² + k → (h,k) is vertex
f(x) = a(x – m)(x – n) → (m,0), (n,0) are x-intercepts

Multiple Choice

What is the y-intercept of 2x² + 6x + 4

Translating Graphs

Moving up and down = adding (up) or subtracting (down) outside of parentheses
Ex: x² + 7
Moving left and right = adding (left) or subtracting (right) inside of parentheses
Ex: (x + 7)²

Multiple Choice

What transformation would occur from x² to (x - 14)²?

Moving up by 14

Moving down by 14

Moving left by 14

Moving right by 14

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Graphs Review

Activating Question:

Write a slope-intercept equation

for this line

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