Math Showcase

Linear equations

100

Solve: x+5=12

x=7

200

Solve: 3x=21

x=7

300

Solve: 2x+4=16

x=6

400

Solve: 5x-7=2x+8

x=5

500

Solve: 3(2x-4)=2x+12

x=6

Functions

100

If f(x)=x+2, find f(3).

5

200

If f(x)=2x, find f(5).

10

300

If f(x)=x^2+1, find f(3).

10

400

f f(x)=3x-4, find f(-2).

-10

500

If f(x)=2x^2-3, find f(-4).

29

Re-Writing Radical Expressions

100

4 Squared

2

200

12 Squared

2

300

50 Squared

5

400

72 Squared

6

500

3 8 squared + 2 18 Squared

12

Identify Polynomials

100

Is 3x+2 a polynomial?

yes

200

ow many terms are in x^2+4x+7?

3 terms

300

What is the degree of 5x^3+2x-1?

degree 3

400

Is x^-2+3 a polynomial?

no

500

Classify 4x^4-2x^2+x-9 by degree and number of terms.

Quartic polynomial with 4 terms

Graphing

100

What is the coordinate of the origin?

0,0

200

In which quadrant is (3,4)?

quadrent 1

300

What is the slope of a line through (0,1) and (2,5)?

m=2

400

What is the y-intercept of y=3x-4?

0,-4

500

What is the equation of a line with slope 2 and y-intercept 3

y=2x+3