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5 ( y = -3x + 5 ) | ( x ) | ( y ) | | --- | --- | | -1 | | | 1 | | | 3 …

Question

5 ( y = -3x + 5 )

( x )( y )
1
3
4

(and a coordinate grid)

7 ( y = \frac{x}{2} + 7 )

( x )( y )
-6
-2
0

(and a coordinate grid)

8 ( y = -\frac{1}{4}x + ) (partially visible)

(and a table with ( x ) values 1, 3, 5, 8 and empty ( y ) cells, and another table with ( x ) values -8, -4, 0, 4 and empty ( y ) cells)

Explanation:

Response
Problem 5: \( y = -3x + 5 \)
Step 1: Calculate \( y \) when \( x = -1 \)

Substitute \( x = -1 \) into the equation:
\( y = -3(-1) + 5 = 3 + 5 = 8 \)

Step 2: Calculate \( y \) when \( x = 1 \)

Substitute \( x = 1 \):
\( y = -3(1) + 5 = -3 + 5 = 2 \)

Step 3: Calculate \( y \) when \( x = 3 \)

Substitute \( x = 3 \):
\( y = -3(3) + 5 = -9 + 5 = -4 \)

Step 4: Calculate \( y \) when \( x = 4 \)

Substitute \( x = 4 \):
\( y = -3(4) + 5 = -12 + 5 = -7 \)

Problem 7: \( y = \frac{x}{2} + 7 \)
Step 1: Calculate \( y \) when \( x = -8 \)

Substitute \( x = -8 \):
\( y = \frac{-8}{2} + 7 = -4 + 7 = 3 \)

Step 2: Calculate \( y \) when \( x = -6 \)

Substitute \( x = -6 \):
\( y = \frac{-6}{2} + 7 = -3 + 7 = 4 \)

Step 3: Calculate \( y \) when \( x = -2 \)

Substitute \( x = -2 \):
\( y = \frac{-2}{2} + 7 = -1 + 7 = 6 \)

Step 4: Calculate \( y \) when \( x = 0 \)

Substitute \( x = 0 \):
\( y = \frac{0}{2} + 7 = 0 + 7 = 7 \)

Filled Tables:
Problem 5 Table:
\( x \)\( y \)
\( 1 \)\( 2 \)
\( 3 \)\( -4 \)
\( 4 \)\( -7 \)
Problem 7 Table:
\( x \)\( y \)
\( -6 \)\( 4 \)
\( -2 \)\( 6 \)
\( 0 \)\( 7 \)

Answer:

Problem 5: \( y = -3x + 5 \)
Step 1: Calculate \( y \) when \( x = -1 \)

Substitute \( x = -1 \) into the equation:
\( y = -3(-1) + 5 = 3 + 5 = 8 \)

Step 2: Calculate \( y \) when \( x = 1 \)

Substitute \( x = 1 \):
\( y = -3(1) + 5 = -3 + 5 = 2 \)

Step 3: Calculate \( y \) when \( x = 3 \)

Substitute \( x = 3 \):
\( y = -3(3) + 5 = -9 + 5 = -4 \)

Step 4: Calculate \( y \) when \( x = 4 \)

Substitute \( x = 4 \):
\( y = -3(4) + 5 = -12 + 5 = -7 \)

Problem 7: \( y = \frac{x}{2} + 7 \)
Step 1: Calculate \( y \) when \( x = -8 \)

Substitute \( x = -8 \):
\( y = \frac{-8}{2} + 7 = -4 + 7 = 3 \)

Step 2: Calculate \( y \) when \( x = -6 \)

Substitute \( x = -6 \):
\( y = \frac{-6}{2} + 7 = -3 + 7 = 4 \)

Step 3: Calculate \( y \) when \( x = -2 \)

Substitute \( x = -2 \):
\( y = \frac{-2}{2} + 7 = -1 + 7 = 6 \)

Step 4: Calculate \( y \) when \( x = 0 \)

Substitute \( x = 0 \):
\( y = \frac{0}{2} + 7 = 0 + 7 = 7 \)

Filled Tables:
Problem 5 Table:
\( x \)\( y \)
\( 1 \)\( 2 \)
\( 3 \)\( -4 \)
\( 4 \)\( -7 \)
Problem 7 Table:
\( x \)\( y \)
\( -6 \)\( 4 \)
\( -2 \)\( 6 \)
\( 0 \)\( 7 \)