Finding X and Y Values

What values of x and y make the equation true?

• x = 5

  y = -2

• x = 3

  y = -5

• x = 9

  y = 10

• x = 16

  y = -5

The x-intercepts of a quadratic equation are known as the _____.

• vertices

• squares

• zeros

• formulas

Tags

CCSS.HSF-IF.C.7A

What does it mean to "find the zeros" of a quadratic?

• Plug in 0 and solve the expression.

• Factor then set each factor equal to zero and solve to find x-intercepts

• Set the expression equal to zero and solve 

• Factor then set each factor equal to zero and solve to find y-intercepts

Tags

CCSS.HSA-REI.B.4B

Find the x and y intercepts of

-x - y = -12

x intercept = ​ (a)  

y intercept = ​ (b)  

• (12, 0)

• (0, 12)

• (0, -12)

• (12, -12)

• (6, 6)

• (-6, -6)

• (-12, 0)

• (12, 1)

• (1, 12)

• x=-9

• y=-3

• x=9

• x=3

• y=9

• y=-9

• (0,4)

• (3,0)

• (3,4)

• y=0

• (4,0)

• x=0

• (0,3)

• (4,3)

• (-3,0)

• (-4,0)

Answer explanation

• x=-9

• y=-3

• x=9

• x=3

• y=9

• y=-9

In the equation 4x - 8y = -40, My x-intercept is ​ (a)   and my y-intercept is ​ (b)  

• (-10, 5)

• (10, 0)

• (0, -5)

• (5, 0)

• (-10, 0)

• (0, 5)

Use the graph of f(x) to determine the real solutions to f(x)=0.

• -10

• 2, 5

• 0, 7

• no real solution