Q4 Review

Rounding

100

Round to the nearest tenth. 

3.251

3.3

200

Round to the nearest hundredths. 

6.4782

6.48

300

Round to the nearest Thousandths. 

9.3297

9.330

400

Round to the nearest ten thousandths. 

5.830582

5.8306

500

Round to the nearest whole number.

23.5490271

24

F(x)

100

f(x) = 2x + 6, x=7

f(7) = 20

200

f(x) = 4x - 3, x = 13

f(13) = 49

300

f(x) = 4x +10, x = 2

f(2) = 18

400

f(x) = 2x - 2, x = -6

f(-6) = -14

500

f(x) = -7x + 8, x = -4

f(-4) = 36

Slope Intercept-Form

100

What does the "b" represent in the equation y=mx+b?

y-intercept

200

What does the "m" represent in the equation y=mx+b?

Slope

300

What is the y-intercept if the equation is y=3x+7?

7

400

What is the slope in y=-2/5x-12?

-2/5

500

Write an equation with a negative slope that intercepts the point (0,-4).

(answers will vary)

Like Terms

100

Combine the like terms. x x² = 

x³

200

Combine the like terms. y³y² = 

y⁵

300

Combine the like terms. x⁴x²y³y⁷ = 

x⁶y¹⁰

400

Combine like terms. x^-2x⁴x¹y⁶y^-7 = 

x³y^-1

500

Combine like terms. x¹⁰y^-12z³y¹²z⁸x^-10 = 

z¹¹

Write that Equation

100

Slope intercept form

m=3, b=5

y=3x+5

200

Slope intercept form

m=-4, b=-19

y=-4x-19

300

A baker makes 5 loafs of bread per hour. He already has 22 loafs of bread. Write an equation to represent the amount of bread.

y=5x+22

400

A bottle of water with 20ounces of water sat in the sun. Water evaporated at a pace of 1 ounces per hour. Write an equation to represent this story. 

y=-x+20

500

A car travelled at a speed of 75 miles per hour. Write an equation to represent the story. 

y=75x