Math 8 End of Year Jeopardy

Equations

100

The value of x in the equation 4x+6=-10

x = -4

200

The value of x in the equation 6(x-2)=18

x = 5

300

The value of x in the equation 5x-2 = -4x+7

x = 1

400

The value of x in the equation 4-5x = -8-5x

No solution

500

The value of x in the equation 1/6 (12x-18) = 2x-3

Infinitely many solutions

Geometry

100

This transformation will not produce a congruent figure.

Dilation

200

A reflection across this axis moved point A (1,3) to A' (1, -3).  

x axis

300

This translation rule will move a figure which direction(s)?

(x,y) -> (x-3, y+6)

left and up

400

The new coordinates of point P (2,5) after a dilation with a scale factor of 3.

(6,15)

500

The three angles inside of a triangle are x, x+8, and 90 degrees.  Set up and solve an equation to find the value of x.

x = 41

Functions

100

Function or not a function?

(1,4)  (2,5)  (4,7)  (8,11)

Function

200

In the linear function y = -5x-8, this number is the y-intercept.

-8

300

The equation that represents:

The output is equal to 5 less than 1/2 of the input.

y = 1/2x-5

400

The value of y in the equation y = (x/-2) +3 when x is equal to 10.

y = -2

500

The equation that represents the given table.

x      0     3     6     9     12

_________________________

y     -2     2     6     10    14

y=4/3x-2

Exponents

100

4³*4⁵

4⁸

200

(x⁶)²

x¹²

300

m¹⁵ / m⁵

m¹⁰

400

y²*y*y⁵

_______

    y⁴

y⁴

500

Evaluate the expression:

-6² + (2³-10)

-38

Miscellaneous

100

Which of the angles listed below are not congruent?

alternate interior angles

vertical angles

consecutive interior angles

corresponding angles

consecutive interior angles (add up to 180 degrees)

200

If a vertical line intersects a graph at more than one point, the graph:

is a function

is not a function

Is not a function

300

When graphing systems of equations and the equations have the same slopes but different y-intercepts, there are how many solutions?

one solution

no solution

infinitely many solutions

No solution

400

A rotation does this to a figure:

Turns it

500

What kind of correlation would you expect to see when graphing the temperature outside and the number of hot chocolates sold?

negative correlation (as temperature increases, number of hot chocolates sold decreases).