Chapter 6 Rational Exponents and Radical Functions - 6.3 Perform Function Operations and Composition - 6.3 Exercises - Mixed Review - Page 434: 59

See the graph

We are given: $y=7x+4$ Substituting $x=0$ to find the y-intercept: $y=7(0)+4$ $y=4$ Plot the point $(0,4)$ Substituting $y=0$ to find the x-intercept: $0=7x+4$ $7x=-4$ $x=\frac{-4}{7}$ Plot the point $(\frac{-4}{7},0)$