MTH 1W Exam Review

A

100

What is the strength of the following correlation coefficient, r = -0.85

Strong Negative Linear Correlation

200

Give an example of a rational and irrational number

Check

300

Table of Values Question - First Differences - Write on Board. Show all your work and provide a statement on whether it is linear or non-linear and why.

Linear because first differences are all the same.

400

Graph the following Lines and find the POI (Point of Intersection)

y= -2x - 2

y= 2x+2

POI = (-1,0)

B

100

Write as a single power 

5⁵ x 5³ x 5

5⁹

200

In a right angle triangle, one angle is 34 degrees, what is the other angle?

56 degrees

300

4(x+2) = 3 (4x - 8)

x=4

400

Calculate the interest earned on a investment of $15000 for 8 years at 2.7%.

I = P x R X T

$3240

C

100

List the following as a fixed or variable expense.

Rent, Monthly Wifi Bill, Movie Tickets, Car Insurance

Fixed - Rent, Wifi, Car

Variable - Movies

200

If x = 7, then -4x +2 equals ?

-26

300

Pythagorean Theorem question. Solve for the missing side - Draw on board.

15cmH,12cm 

9cm

400

Jack went to the grocery store with $20 and wants to buy the following. 

Oranges - 3.99, Apples 2.99, Bananas 2.50, Chocolate 1.50 and Cookies 4.99. HST (Tax = 13%) is only charged to unhealthy foods. What is Jacks final bill? Does he have enough money?

$16.81, Yes Jack has enough money if he brought $20. He would have $3.19 left over.

D

100

What is 25% of 324?

81

200

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

Initial Value/Y Intercept

300

Which fraction is greater?

1/40 or 1/30

1/30

400

Determine the slope of a graph given the following two points. A (4,1) and B (11,-6)

Slope = -1

E

100

Write an equation with a parallel slope to y=3x-2 with a y intercept of 5.

y=3x+5

200

A polynomial with three terms such as 5x² + 3x - 9 is called a 

Trinomial

300

A Cylinder has a diameter of 50m and a height of 72m. What is the volume of the cylinder? 

V = 3.14(r²)h

141300m³

400

Create perpendicular equations for each of the following with the same y intercept.

1) y=-1/3x+2. 

2) y=4x - 8

3) y=-2x+1

1) y=3x+2

2) y= -1/4x - 8

3) y= 1/2x + 1