Functions to Linear Models

What is the slope of the equation?
y = -3x + 4

• -3

• 3

• 4

• -4

What type of slope does the graph have?

• Zero

• Undefined

• Negative

• Positive

Is this graph a function or not a function? 

• Function

• Not a Function

What is the domain of the graph shown?

• <-2, -1, 0, 1, 2, 3, 4>

• <2, 3, 4>

• <2 ≤ y ≤ 4>

• <-2 ≤ x ≤ 4>

Find f(2)

• 5

• 4

• 3

• 0

_{What is the y-intercept of the line?}

•  (0,¹/₂)

• (0,1)

• (0, ^-1/2)

• (0, -1)

Give the x-intercept
3x + 8y = 24

• (8, 0)

• (0, 8)

• (3, 0)

• (0, 3)

What is the y-intercept in the equation x + 2y = 4

• (0, 0)

• (0, 2)

• (4, 0)

• (2, 0)

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

The inequality $3x+2y>96$ approximately models the projected sales for a stadium vendor if she sells more than $96 of snacks during the game and is represented in the graph. Which statement is true?

• The line is dashed and shaded above the line because it is greater than but not equal to $96.

• The line is dashed because all inequalities are dashed to designate the difference between an inequality and a line.

• The graph is shaded above the line so you can clearly see the combinations below the line.

• Based on the inequality and associated graph, the vendor is only trying to sell up to $96 worth of snacks.