8.EE.B.6 Tutor Intake -- Similar Triangles and Slope-Intercept Derivation

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Grade 8·9 problems·~9 min·Common Core Math - Grade 8·container·8-ee-b-6

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Concepts

A line has y-intercept $(0, b)$ and passes through a general
point $(x, y)$ . When constructing the slope triangle from
$(0, b)$ to $(x, y)$ , what is the rise?

$y - b$ , because the vertical distance starts at height $b$ and ends at height $y$ .

$y$ , using the same rise as when the line passes through the origin.

$b - y$ , the reverse of the correct order.

$y + b$ , adding the two heights together.