Chapter 5 - Straight Line Graphs with perfect answers 2024

What is the equation for the gradient? correct answersm = (y2 - y1) / (x2 - x1) How is the equation of a straight line written? correct answersThe equation of a straight line can be written in the form y = mx + c. It can also be written as ax + by + c = 0 where a, b and c are integers. What are the two ways to find an equation of a straight line? correct answersBy giving: One point on the line and the gradient Two different points on the line What is the equation to find the equation of a line with gradient m that passes through (x1, y1)? correct answersy-y1=m(x-x1) What is the rule for parallel lines? correct answersParallel lines have the same gradient. What are the rules for perpendicular lines? correct answersPerpendicular lines are at right angles to each other. If a line has gradient m,