PLEASE HELP! I have 3 questions that need to be answered please help me) 1.) what's the definition of transitional light?

2.) what's the definition of Value contrast?

3.) what's the definition of light source?

When graphing a linear equation that is written in the form y=mx+b, the variable m represents the y-intercept. assuming that b> 0, which of the following best describes how reversing the sign of b would affect the graph? a) the new line will be shifted down b units b) the new line will be shifted down b x 2 units c) the new line will be a perfect reflection across the x-axis d) the new line will be a perfect reflection across the y-axis

To is to remove a word from a document. copy paste cut clipboard

The authors use the word “backbone” in lines 3 and 39 to indicate that