A line has a slope of 3 and passes through the point (−2,−10). Write its equation in slope-intercept form.Write your answer using integers, proper fractions, and improper fractions in simplest form.
Q. A line has a slope of 3 and passes through the point (−2,−10). Write its equation in slope-intercept form.Write your answer using integers, proper fractions, and improper fractions in simplest form.
Remember slope-intercept form: First, remember the slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.
Find y-intercept: We know the slope m is 3. Now we need to find the y-intercept b using the point (−2,−10).
Plug in point: Plug the point into the equation: −10=3∗(−2)+b.
Do the math: Do the math: −10=−6+b.
Solve for b: Solve for b: b=−10+6.
Final equation: So, b=−4.
Final equation: So, b=−4.Now we have the slope (m=3) and the y-intercept (b=−4). The equation is y=3x−4.
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