Finding Slope and Y-Intercept from Graphs

What is the general form of the equation for a linear relationship?

• y = ax^2 + bx + c

• y = mx^2 + b

• y = mx + b

• y = a/x + b

Where do you look to find the y-intercept on a graph?

• Slope

• Origin

• Y-axis

• X-axis

If a line crosses the y-axis at 3, what is the y-intercept?

• 0

• 3

• 2

• 1

What is the formula to calculate the slope?

• Sum of x and y

• Change in x over change in y

• Rise over run

• Run over rise

If you rise 4 units and run 2 units, what is the slope?

• 2

• 0.5

• 4

• 1

In the equation y = 2x + 3, what is the slope?

• 1

• 0

• 3

• 2

In the equation y = -2x + 4, what is the y-intercept?

• -2

• 0

• 4

• 2

If a line decreases as you move from left to right, what is the sign of the slope?

• Undefined

• Positive

• Negative

• Zero

What is the slope of a line that rises 3 units and runs 2 units?

• 3/2

• 2/3

• 5

• 1

In the equation y = -1/2x + 2, what is the slope?

• 2

• -2

• -1/2

• 1/2