SOLUTION: Can you help me with the folowing two questions? Suppose that f is a linear function with slope 4 and that f(3)=5. Find the equation for f. The answer I got was b=-7. Is that right
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Question 160162: Can you help me with the folowing two questions? Suppose that f is a linear function with slope 4 and that f(3)=5. Find the equation for f. The answer I got was b=-7. Is that right? Do I right the equation f(x)=4(3)-7?
The 2nd question is: Suppose that f is a linear function such that f(3)=5 and f(7)=-4. Find the equation for f. My answer is I think the slope should be -9/4 but what do I do now?
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
You got the first part correct.
The second problem is a slight variation on the first one.
In the first problem, you were given the slope and a point (3,5). In the second problem, you are just given two points (3,5) and (7, -4). So in the second one, you need to find the slope.
Slope =
You got that part correct too.
All you need to do now is the same thing you did in the first part
No plug it in
Check your answer. Does it work for the point (7, -4)??
so it is true. And the equation is correct.
You were ====> <===== this close. Way to go!
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