Question

A line that includes the point (1,8) has a gradient of 2. What is its equation in

gradient-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
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Answer 1

y=2x+6

Step-by-step explanation: y=mx+b

substitute in known values y=2x+b gradient is 2 (given)

substitute in coordinate values (1,8) 8=2(1)+b

solve for B 8=2+b

-2 -2

6=b

therefore the answer is y=2x+6