Intersection of a Line and a Circle

The video tutorial explains how to find the intersection point of a line and a circle in the first quadrant. It begins by analyzing the line's equation and the circle's properties, then sets up a system of equations. The tutorial demonstrates solving the system using substitution and the quadratic formula, focusing on the positive solution. Finally, it calculates the intersection point's coordinates, rounding them to three decimal places.

What is the equation of the line given in the problem?

• y = 2x + 1

• y = x + 2

• y = x - 2

• y = 3x - 1

Tags

CCSS.7.G.B.4

What is the radius of the circle mentioned in the problem?

• 5

• 4

• 6

• 3

Tags

CCSS.HSG.GPE.A.1

What is the center of the circle?

• (0, 0)

• (1, 4)

• (0, 4)

• (4, 0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What method is used to solve the system of equations?

• Elimination

• Graphing

• Substitution

• Matrix method

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What type of equation is formed after substitution?

• Linear equation

• Quadratic equation

• Cubic equation

• Exponential equation

Tags

CCSS.HSA-REI.B.4B

Which formula is used to solve the quadratic equation?

• Pythagorean theorem

• Quadratic formula

• Binomial theorem

• Factorization

Tags

CCSS.8.EE.C.8B

What is the approximate x-coordinate of the intersection point?

• 2.500

• 3.000

• 2.885

• 3.500

Tags

CCSS.HSA.REI.C.7

How is the y-coordinate of the intersection point found?

• Using a calculator

• Using a graph

• Using the line's equation

• Using the circle's equation

Tags

CCSS.8.EE.C.8B

What is the approximate y-coordinate of the intersection point?

• 6.500

• 6.770

• 7.000

• 7.500

Tags

CCSS.HSN.CN.B.4

What is the significance of the solution being in the first quadrant?

• Both coordinates are negative

• Both coordinates are positive

• One coordinate is negative

• One coordinate is zero

Tags

CCSS.HSN.CN.B.4