  • Matrices
• Algebra
• Geometry
• Graphs and functions
• Trigonometry
• Coordinate geometry
• Combinatorics
 Suma y resta Producto por escalar Producto Inversa
 Monomials Polynomials Special products Equations Quadratic equations Radical expressions Systems of equations Sequences and series Inner product Exponential equations Matrices Determinants Inverse of a matrix Logarithmic equations Systems of 3 variables equations
 2-D Shapes Areas Pythagorean Theorem Distances
 Graphs Definition of slope Positive or negative slope Determine slope of a line Equation of a line Equation of a line (from graph) Quadratic function Parallel, coincident and intersecting lines Asymptotes Limits Distances Continuity and discontinuities
 Sine Cosine Tangent Cosecant Secant Cotangent Trigonometric identities Law of cosines Law of sines
 Equations of a straight line Parallel, coincident and intersecting lines Distances Angles in space Inner product

# Line graphs

A Line graph (chart) is a way to summarize series of quantities.

• The horizontal scale across the bottom and the vertical scale along the side provides information on how much or how many.
• The points on the graph show the facts.
• The lines connecting the points give estimates the values between the points.

The following line graph represents the value of Robert's baseball card collection. 1. How much has the value of Robert's collection increased from January to June? $10.00. 2. If this trend continues, what would be a reasonable estimate for the value of this collection in July?$132.50

The following line graph shows the maximum temperatures in Canada between April and August. Which two months had the same temperature?

June and July
May and June
July and August