Grade 8 Envision Mini Test 2 Review | Baamboozle - Baamboozle

How do you find slope

Any good verbal answer

Find the three slopes

ma=2, mb=1, mc=1/2

Tell me a fact about each line.

any true statments about +ve, -ve increasing etc m=... proportional (can only ay once)

Which plane is faster?

Bernie's. 7>5

One line has the equation y=4x, the other goes through the points (1,2) and (3,12). Which line is steeper?

The second one. The slope is 5. 5>4

I am running at 8m/s. How long will it take me to run 100m?

12.5 seconds (I wish I was that fast!)

What is the equation of the line?

y=10x+5

What is the slope of this line?

1/2

What is the slope and y intercept of this line?

slope is 2, y-intercept is zero

The y-axis is measuring distance to your destination and the x-axis is measuring time. What does the y-intercept tell us ?

The distance you have to travel at the start or beginning of the model.

A ramp for cars to enter a boat is 15m long and 5 meters high. What is the slope?

5/15=1/3

What can the y-intercept tell us about a situation? What do you need to understand to do this?

it can tell us about the beginning or start of a model. We must understand the untis

How do you find the y-intercept?

make x=0

Find the slope of the line that goes through the points (0,0) and (5,10). Then tell me one fact about this line.

10/5=2. It's increasing, its proportional

What are the slope and y intercepts of this equation. y=5x-10

slope is 5, y-intercept is -10

Find the slope. Look at the units carefully!

125

Give me 3 different names for k or m.

slope, gradient, constant of proportionality, unit rate

What is a word beginning with R that describes comparing two things with division?

RATIO

How do we find slope?

rise/run (y2-y1)/(x2-x1)

What does slope tell us?

The steepness of the line

How can we write a proportional relationship and what point must it always pass through?

y=kx, (0,0)