At whats points does the graph of (t^2)+8t+7 intersect the x axis
Explain to the students what a one to many functions is which in this case is a quadratic, giving them an understanding of why there are two solutions, aided with the image of the quadratic.
Followed by explaining how to solve the quadratic and obtaining the values of x. In this case showing the fastest method of factorising, however, also explained the quadratic formula for cases that they cannot be factorised
TD
Related Maths GCSE answers
All answers ▸Refer to question taken from Edexcel Maths Paper
There are 10 beads in a bag. Four beads are green, six are black. If three beads are taken at random without replacement, what is the probability that they are the same colour?
Solve the simultaneous equations 3x + y = –4 and 3x – 4y = 6
Find the points where f(x)=x^2-5x-14 meets the x-axis and find the turning point