Question

Which point lies on the line $y=9x+7$?

• A. $(1,-1)$
• B. $(0,7)$
• C. $(7,3)$
• D. $(4,-5)$

Answer 1

The correct option is B $(0,7)$

For point $(1,-1)$,

$putx=1andy=-1$ we get

$y=9x+7$

$-1=9\left(1\right)+7$

$-1\ne 16$

Therefore, Option 1 doesn't satisfies the equation.

for point $(0,7)$

$putx=0andy=7$ we get

$7=9\left(0\right)+7$

$7=7$

Therefore, option 2 satisfies the equation.

for point $(7,3)$

$putx=7andy=3$ we get

$3=9\left(7\right)+7$

$3\ne 70$

Therefore, option 3 doesn't satisfies the equation.

for point $(4,-5)$

$putx=4andy=-5$ we get

$-5=9\left(4\right)+7$

$-5\ne 43$

Therefore, option 4 doesn't satisfies the equation.

Option $B$ is correct.