Algebra Support Finals Project by Brianna W.

Linear Functions

100

A line has the equation y=-4x+7. What is the slope?

-4

200

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

y=3x-2

300

A phone plan charges a $15 base fee plus $0.10 per text. Write a linear equation for the total cost C

y=.10x+15

400

Does the point (3,-1) lie on the line y=2x-7?

yes

500

What is the slope that passes through (2,5) and (6,9)

1

Quadratic Functions

100

A ball is thrown with height h=-5t²+20t+3. What is the inital height?

3

200

Does the parabola y=2x²+8x-5 open upward or downward?

upward

300

find the vertex of: y=(x-4)²+3

(4,3)

400

solve the equation x²=49

x=7

x=-7

500

Factor the expression: x²-9x+20

(x-5)(x-4)

Exponential Functions

100

Is y=3(0.7)^x growth or decay?

Decay

200

A population doubles every hour. If it starts at 40, write an exponential model?

y=40(2)^x

300

Evaluate 2⁵

32

400

Identify the growth factor in: y=5(1.2)^x

1.2

500

Which is larger 3⁴ or 4³

3⁴

Inequalities

100

Is 7 < 12 true or false?

True

200

Solve: x+3 > 7

x > 4

300

SOLVE: 2x-4≤10

 x≤7

400

Solve: x+2 < 6

x<4

500

Solve: -2x+6<14

x>-4

Rational/Irrational Equations

100

Is 0.3333… repeating rational or irrational?

Rational

200

Is √50 rational or irrational?

Irrational

300

Which is irrational: √36 or √15

√15

400

All integers are rational numbers?

True

500

Is 2.1010010001… rational or irrational

Irrational