A 10 hour course (60 slides) available from mathedoeswork.com that is intended to complement a calculus course. It covers Introduction -...

The number of pears on my tree went up 5% in 2023, and went up another 25% in 2024. 1) If the number of pears at the end of 2022 was 80,...

Sometimes the easiest things are the hardest to remember! For example, if you have the graph of y = sin(x) and you add "a" to x, does the...

When you solve simultaneous equations you are looking for an exact value of x and y that satisfies both of the equations. Inequalities...

When you use math in the real world, you don't have multiple choice answers: usually you are solving a problem that nobody has done...

When we measure distances we use measurements of length: cm, metres, yards, miles. Conceptually we use a measuring stick and step off how...

Radians are a measure of angle. If you measure the length of the radius (R) of a circle on its circumference, the angle that that arc...

Linear equations (straight lines) can do 3 things: intersect each other (one solution, which is where the x,y value of the intersection...

Two lines ax + by = 5 and 4x - 5y = 3 are peroendicular. What is the relationship between a and b? Lines y = mx + b is...

We are all used to seeing "y is 150% of x", which means y = 1.5x. We are less used to seeing "y is 150% more than x" and there is a...

Consider an exponential expression, like f(x) = A(1.5)^x. I read the question and then look at two values of x that usually shorten the...

Multiple choice questions look like an easier way to solve a problem, but beware of two disadvantages: you are learning math so that you...

When you start learning about functions, the left hand side is usually y, and then on the right hand side we build up more complicated...