Slope-Intercept Form

Pre-Algebra Slope-Intercept Form Flashcards

What does m represent?

the slope of the line

What does “slope” mean?

The steepness of a line.

Also referred to as “m”

What does b represent?

the y-intercept of the line

What is the y-intercept?

The place on the y-axis where the line crosses or intersects with it.

Also referred to as “b”.

What does the “Initial Value” represent?

the y-intercept, or “b”

What does the “rate of change” represent?

The slope, or “m”

What does “constant of proportionality” represent?

the slope, or rate of change, or '“m”

What is the slope-intercept form of a line?

y = mx + b

What is the general formula for finding the slope?

“change in y OVER the change in x”

How do you find the slope from two points?

y₂ - y₁ OVER x₂ - x₁

If the slope is 3 and the y-intercept is 8, what is the equation in slope-intercept form?

m = 3, b = 8

Equation: y = 3x + 8

If the slope is -6 and the y-intercept is -12, what is the equation in slope-intercept form?

m = -6, b = -12

Equation: y = -6x - 12

In the equation y = 5x + 9, what is the slope and what is the y-intercept?

Slope (m) = 5

y-intercept (b) = 9

Lines that increase left to right have what kind of slopes?

Positive

Lines that decrease left to right have what kind of slopes?

Negative