Linear Equation Forms

Which equation is in slope-intercept form?

• y = mx + b

• y - y₁ = m(x - x₁)

• ax + by = c

• y = x²

Which equation is in point-slope form?

• y = mx + b

• y - y₁ = m(x - x₁)

• ax + by = c

• y = x²

Which equation is in standard form?

• y = mx + b

• y - y₁ = m(x - x₁)

• ax + by = c

• y = x²

In an equation that is in slope-intercept form (and in point-slope form), slope is designated with the letter...?

• a

• b

• m

• c

A line with a negative slope...

• slopes down when read from left to right

• slopes up when read from left to right

• is a vertical line

• i a horizontal line

The following equation is in standard form

3x -4y = 12

What is the x intercept?

• (3, 0)

• (-4, 0)

• (-3, 0)

• (4, 0)

The following equation is in standard form

3x -4y = 12

What is the y intercept?

• (0, 3)

• (0, -4)

• (0, -3)

• (0, 4)

What is wrong with the following equation that is in standard form?

-3x - 4y = 12

• The first number (a) can't be negative

• The second number (b) can't be negative

• The third number (c) is on the wrong side

• There is nothing wrong, this is a trick question

In the following equation that is written in point-slope form

y + 2 = 1/2(x - 4)

To start the graph, you would place the point at which coordinate pair?

• (2, 4)

• (4, 2)

• (2, -4)

• (4, -2)

In the following equation that is written in point-slope form

y + 4 = 3/4(x)

Where would you place the first point?

• (4, 0)

• (0, -4)

• (0, 4)

• (4, 3)