In Diagram 2, O is the origin. Straight line PQ is parallel to straignt line RS and straight line QR is parallel to y-axis.
The equation of the straight line PQ is y= 2x + 5.

a) state the equation of the straight line QR.
ans: Q(1,7) , x=1

Can someone explain to me how to get the answer?

Come up with a new linear function that has a slope that falls in the range 10 m − < < . choose two different initial values. for this new linear function, what happens to the function’s values after many iterations? are the function’s values getting close to a particular number in each case?

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years