Edexcel A-Level Mathematics AS P2.5.1 Y Ax and Its Graph Questions

Practise sketching y=a^x and transformed exponential graphs, reading intercepts, asymptotes and meanings in simple models.

Exam points

sketch y=a^x or y=a^{-x}+c with the correct shape and asymptote

[Maximum number: 3]

Sketch the curve with equation

y=a^{-x}+4

where a is a constant and a>1
On your sketch show
- the coordinates of the point of intersection of the curve with the y-axis
- the equation of the asymptote to the curve.

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Edexcel A-Level Mathematics AS P2.5.1 Y Ax and Its Graph Questions question 1