Answer:
y = - 12.5
Step-by-step explanation:
Given y varies inversely as x then the equation relating them is
y = ← k is the constant of variation
To find k use the condition x = - 5 when y = 10, then
k = yx = 10 × - 5 = - 50
y = ← equation of variation
When x = 4, then
y = = - 12.5
A real number x will be called a solution or a root if it satisfies the equation, meaning . It is easy to see that the roots are exactly the x-intercepts of the quadratic function , that is the intersection between the graph of the quadratic function with the x-axis.
<span>Trace a straight line from one vertex, dividing the original angle between the two intersecting sements that form the vertex, to the opposite side (until you intercept the opposite side). That will split the original triangle into two smaller triangles, with one common side.</span>
Answer:
f(x) = 30(0.7746)^x
Step-by-step explanation:
30 (y)^0 = 30
30(y)^2 = 18 We need to find the value of y.
y^2 = 18/30 = 0.6
y = sqrt0.6 = 0.7746
so the exponential function is 30(0.7746)^x
6 + 2m
Hope I could help you! :)