exam Maths Puzzle Numerical Ability

find the slope, if it exists, of the line containing the points (-5, 1/2) and
(-8, 1/2).

m =

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exam Other Question

The temperature in degrees Fahrenheit,F, is the sum of 9/5 the temperature in degrees Celsius, C, and the constant 32. Which equation best represents this relationship?
A. F= 9/5C + 32
B. F= 9/5(C+32)
C. F= 9/5 + C + 32
D. F= 9/5(C-32) Can you Help?

f(x)* h(x)

if
f(x)= 7x-40
h(x)=-x^2 + 6x