Here’s the first few and you can do the rest with the same principles. If you need more help with the last ones then let me know
43. Which function has an x-intercept of 4?
1 answer:
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Answer:
see explanation
Step-by-step explanation:
Given x varies directly as y then the equation relating them is
x = ky ← k is the constant of variation
To find k use the condition x = 9 when y = 4
k = =
= 2.25
x = 2.25y ← equation of variation
When y = 8, then
x = 2.25 × 8 = 18