Finding X and Y Intercepts in Linear Equations

What is the most common form of a linear equation?

• ax + by = c

• y = mx + b

• y = ax^2 + bx + c

• x^2 + y^2 = r^2

In the standard form of a linear equation, what must be true about the coefficients a and b?

• They must be negative numbers

• They must not be fractions

• They must be positive numbers

• They must be fractions

What method can be used to find intercepts by covering up terms in the equation?

• Cover-up method

• Elimination method

• Substitution method

• Graphing method

Tags

CCSS.HSF-IF.C.7A

When finding the y-intercept in standard form, what value is substituted for x?

• y

• 1

• a

• 0

Tags

CCSS.HSF-IF.C.7A

In the slope-intercept form y = mx + b, what does the 'b' represent?

• The coefficient of x

• The x-intercept

• The y-intercept

• The slope

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

How do you find the x-intercept in slope-intercept form?

• Set the slope to 0

• Set both x and y to 0

• Set x to 0 and solve for y

• Set y to 0 and solve for x

What is the x-intercept of the equation y = 2/3x + 2?

• 4

• 3

• 2

• 0

For the equation -3x + 4y = 12, what is the y-intercept?

• 4

• 12

• 3

• 0

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

For the equation y = 3/4x + 3, what is the x-intercept?

• 4

• 3

• 0

• -4

What should you always ensure when solving for intercepts?

• Check the slope

• Do the arithmetic correctly

• Graph the equation

• Use a calculator