C) x = -19/10 because when solving it with substitution u get x=-19/10 & y=153/10
When a line and a curve are tangent to each other, they are joined together by 1 point (x,y). So, you equate both equations either in terms of x or y. For this problem, let's equate in terms of y.
y = k - x
y = x² + 3x + 1
k - x = x² + 3x + 1
k = x² + 3x + x + 1
k = x² + 4x + 1
This would be the value of k. Since we are not given the common point, it can only be expressed in terms of x or y.
No, in order for a right triangle to be similar it would need to have the same height and base.
Answer:
80 as a product of prime numbers can be expressed as 2×2×2×2×5
