Slope Triangle and y = kx

How can you use similar triangles to find the slope of a line?

• The slope can be calculated using the area of the triangle formed by the line.

• The slope of a line can be found using the formula m = (y2 - y1) / (x2 - x1) based on the rise over run from similar triangles.

• You can find the slope by measuring the angles of the triangles.

• The slope is determined by the length of the hypotenuse of the triangle.

What does it mean for a relationship to be linear?

• A relationship is linear if it can be represented by a straight line, indicating a constant rate of change between the variables.

• A relationship is linear if it involves multiple variables changing at different rates.

• A relationship is linear if it shows no correlation between the variables.

• A relationship is linear if it can be represented by a curved line.

If a line has a slope of -4, what does that indicate about its direction?

• The line descends from left to right.

• The line is vertical.

• The line ascends from left to right.

• The line is horizontal.

A table needs to have the same ____ to be proportional.

• Ratio of y/x

• Ratio of x/y

• y-intercept

• slope

A proportional equation looks like...

• y=kx

• y=mx+b

• y=kx+b

• y=ax²+bx+c

Slope, in basic terms, is simply...

• Rise over run

• Run over rise

• Left over down

• Right over up

The formula for slope has _____ on top.

• y₂- y₁

• x₂- x₁

• y₁- y₂

• x₁- x₂

The formula for slope has _____ on bottom.

• y₂- y₁

• x₂- x₁

• y₁- y₂

• x₁- x₂