HELP AP MACROECONOMICS
If disposable income increases from $50,000 to $55,000 leading to a change in consumption from $40,000 to $42,000, then what would be the impact of $100 billion dollar increase in Government spending on aggregate demand?’

You need to figure out at which x-value does the graph has a tangent line slope of -1.remember, the derivative is the slope of the tangent line. so find the derivative function and set it to equal -1 to find the x-value that will have a tangent line slope of 0.differentiate with the chain rule.    set the derivative to equal -1 and solve for x.      take log base 10 of both sides. also recall that  .    so the x-coord of the point of tangency is .the y-coordinate of this point of tangency can be calculated using the original function:     using point-slope form, the equation of the tangent line is      the x-intercept of this tangent line is when the graph is at y=0.    this rounds off to  .choice c.

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explanation:

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Which element of a health-related website would suggest that the site may not be credible or reliable?

hyperlinks to other fitness, nutrition, or medical sites
tips for achieving instant positive results or an instant cure
details about a recent study on a medical issue or condition
safety warnings related to the information that is presented