Accedmychevron_right11thchevron_rightmathchevron_rightFunctions And Graphschevron_rightExercise 2.2

Key idea

For a graph y=f(x)y=f(x):

x-intercept: y=0,y-intercept: x=0\text{$x$-intercept: } y=0,\qquad \text{$y$-intercept: } x=0

For a line y=mx+cy=mx+c:

y-intercept (0,c),x-intercept (cm,0) (m0)\text{$y$-intercept }(0,c),\qquad \text{$x$-intercept }\left(-\frac{c}{m},0\right)\ (m\neq 0)