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The equation of line A is (x)^2 + 11x + 12 = y - 4, while the equation of line B is x - 6 = y + 2. Find the co-ordinate(s) of the point at which lines A and B intersect.

While this question may seem complicated, this question is simply asking you to solve the equations of these two lines as simultaneous equations . Line A: x 2 + 11x + 12 = y - 4 --> x 2 + 11x + 16 = y; Li...
AA
Answered by Ann A. • Maths tutor
3634 Views

Solve the following quadratic equation: 2x^2 - 5x - 3 = 0

Firstly, we need to factorise the equation:We can see (and are told) that the equation is quadratic and is therefore of the form ax^2 + bx + c. In our case, a=2, b=-5 and c=-3. We therefore expect two pairs ...
JA
Answered by Jacob A. • Maths tutor
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Draw the I-V curves of both an ideal resistor and a filament bulb. Explain the key features of both.

Plot: I-V curve of an ideal resistor is a straight line with a positive gradient passing through (0,0)The I-V curve of an ideal resistor is a straight line because ideal resistors strictly obey Ohm's law (V ...
JA
Answered by Jacob A. • Physics tutor
10434 Views

What is the consequence of lung fibrosis on gaseous exchange?

Fibrosis is the formation of scar tissue due to injury of the alveolar walls (small sacs at the end of bronchioles that are responsible for gaseous exchange), from smoking or other small particles. Due to th...
SA
Answered by Stephen A. • Biology tutor
3360 Views

Explain the trend in first ionisation energies across a period.

There is a general increase in the ionisation energy as we move across a period. This is because the the number of shielding electrons is constant and the atomic number increases, which means the effective n...
KS
Answered by Kealan S. • Chemistry tutor
3235 Views