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Bellwork

2. 4.5 Graphing Linear Equations 4.6 Functions
Algebra 1

3. 4.5 Graphing Linear Equations
Vocabulary
Linear Equation
Equation of a line
Cannot have exponents
Cannot have more than two variables
Standard Form Ax + By = C
A, B, and C are integers
A can be neither a fraction or negative
X and Y can only be 0 one at a time
4.5 Graphing Linear Equations

4. X – intercept Y – intercept INTERCEPTS
the point at which a linear equation crosses the x-axis
To find the x-intercept, let Y be ZERO and solve for x
Y – intercept
the point at which a linear equation crosses the y-axis
To find the y-intercept, let X be ZERO and solve for y.
INTERCEPTS

5. 1. 5x + 3y = z x = y + 8 4
Determine whether each equation is a linear equation. If so write the equation in Standard Form.

6. 3. 3x - 6y = x = -7 4
Determine whether each equation is a linear equation. If so write the equation in Standard Form.

7. X Y
5. Graph using a T-Table

8. 6. Find the x and y intercepts
X intercept
( ,0)
Y intercept
(0, )
6. Find the x and y intercepts

9. Function Vertical Line Test 4.6 Functions
\a relation in which each number of the domain is paired with exactly ONE number of the range
The DOMAIN CANNOT REPEAT!!!!!
input and output
Vertical Line Test
If you draw vertical lines on the graph, and it touches the linear equation graphed more than ONCE, then the graph is NOT a function
4.6 Functions

10. Function Notation - f(x)
f(x) = y
Y can be replaced with f(x) to denote a function.

11. Determine whether each relation is a function (yes or no).

12. Evaluate  If f(x) = 3x -4, find each value. 5. f(4) 6. f(- 5)

13. Evaluate! If k(m) = m2 - 4m + 5, find each value. 8. k(- 3) 9. k(6x)
[k(y)]
Evaluate!

14. 4.5 Study Guide and Intervention1. 2. 3.
4.5 Study Guide and Intervention

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16. 4.6 Study Guide and Intervention1. 2. 3. 7. 8. 9.
4.6 Study Guide and Intervention

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