9.2 Practice solving for x-intercepts

• Factored
• Standard
• neither
• slope-intercept
• Vertex
• Slope-intercept

• x=2 and x=-9
• x=-2 and x=9
• x=-2 and x=-9
• x=2 and x=9

• Standard
• neither
• slope-intercept
• Vertex
• Slope-intercept
• Factored

Mathematical Equivalence

ON

• x=-3 and x=-6
• x=-3 and x=6
• x=3 and x=-6
• x=3 and x=6

Answer explanation

The solutions to this equation are

x = -3 AND x = -6

factor the equation to get

0 = (x+6)(x+3).

Finally, set each factor equal to 0 and solve for x.

• Neither
• Standard
• slope-intercept
• Vertex
• Slope-intercept
• Factored

Mathematical Equivalence

ON

Mathematical Equivalence

ON

• x=3 and x=6
• x=-3 and x=6
• x=3 and x=-6
• x=-3 and x=-6

Answer explanation

The solutions to this equation are

x = -3 AND x = 9

To solve this equation, you must first move the constant term, -18, to the right side of the equation. Then, factor the equation to get

0=(x-9)(x+3) .

Finally, set each factor equal to 0 and solve for x.

• Neither
• Standard
• slope-intercept
• Vertex
• Slope-intercept
• Factored