find the values of p(0) , p(1) and p(2)
2. let L: x/2 - x/3 =1 be the equation of a given straight line.
a)If (a,-12) and (4,b) are points on L, find a and b.
b)Find the slope of the straight line.
3.the height of a right-angled triangle is longer than its base by 7cm and the area of the triangle is 30cm^2.
suppose the base and the height of the triangle are x cm and y cm.
a)set a pair of simultaneous equations in x and y.
b)find the perimeter of the triangle.
更新1:
2. 修正 let L: x/2 - y/3 =1 be the equation of a given straight line.
