Page 36 - Math Course 1 (Book 2)

Linear Equations

Graph by Making a Table
MO. 8 - L1b
Is this graph the correct graph for y = 3x – 4?

a. yes Identify Intercepts and Zeros
b. no
c. not enough information to determine

Vocabulary A-Z
Let us learn some vocabulary

x-intercept
The x-coordinate of the point at which the graph of
x y = 3x – 4 y (x, y) an equation crosses the x-axis is an x-intercept.

–2 3(–2)–4 –10 (–2, –10)
y-intercept
–1 3(–1)–4 –7 (–1, –7)
The y-coordinate of the point at which the graph
0 3(0)–4 –4 (0, –4) crosses the y-axis is called a y-intercept.

1 3(1)–4 –1 (1, –1)
2 3(2)–4 2 (2, 2) zero of function
Values of x for which f(x) = 0 are called zeros of
Answer the function f. The zero of a function is its
x-intercept.
Graph by Using Intercepts

Is this graph the correct graph for 2x + 5y = 10?

a. yes
b. no
c. not enough information to determine

Answer

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