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10 votes
10 votes
I’m struggling to understand the next part cause I thought it was 28 but I guess not

I’m struggling to understand the next part cause I thought it was 28 but I guess not-example-1
User Dmitry Pavlov
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2.3k points

1 Answer

11 votes
11 votes

The equation of a straight line is given in the form:


y=mx+b

where m is the slope and b is the intercept on the y axis.

The question already provides the value of the slope to be:


m=28

Therefore, the value of b can be gotten by substituting any pair of x and y values into the equation:


\begin{gathered} y=28x+b \\ Take\text{ }(x,y)=(1,28) \\ \therefore \\ 28=28(1)+b \\ 28=28+b \\ b=28-28 \\ b=0 \end{gathered}

The unknown value is 0.

The equation will be:


\begin{gathered} y=28x+0 \\ or \\ y=28x \end{gathered}

User Sabof
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2.4k points