Exploring Equations from Point and Slope

What is the formula for the slope-intercept form of a line?

• y = mx + c

• y = mx - b

• x = my + b

• y = m/x + b

What does 'm' represent in the slope-intercept form?

• X-intercept

• Slope

• Y-intercept

• Coefficient

How do you find the y-intercept algebraically if you are given a slope and a point?

• Substitute the slope and point into y = mx + b and solve for b

• Multiply the slope with the x-coordinate of the point

• Add the slope to the y-coordinate of the point

• Divide the y-coordinate by the slope

What is the final equation if the slope is -2 and it passes through (-4, 6)?

• y = -2x + 2

• y = 2x - 2

• y = 2x + 2

• y = -2x - 2

In the second example, what was the slope of the line?

• 2

• -3

• 3

• -2

What was the y-intercept found in the second example?

• 15

• 23

• -15

• -23

What is the correct way to multiply a fraction with a whole number?

• Multiply the numerator by the whole number and divide by the denominator

• Multiply the whole number with the denominator

• Divide the numerator by the whole number

• Add the whole number to the numerator

What was the slope used in the third example?

• 3/4

• -4/3

• 4/3

• -3/4

After solving, what was the y-intercept in the third example?

• 4

• 6

• -6

• -4

What is the final equation from the third example?

• y = -4/3x + 4

• y = 3/4x - 4

• y = -3/4x + 4

• y = 4/3x - 4